Abdul Rahman, N. (2019). Penerokaan pengetahuan dan kesedaran pendidikan alam  sekitar dalam kalangan kanak-kanak pra sekolah menerusi pendekatan  projek (Doctoral dissertation, Universiti Pendidikan Sultan Idris). 

Abdul Rahman, N., Md Yassin, S., & Mohd Yusop, N. A. (2016). Pembelajaran secara  inisiatif kanak-kanak menerusi pendekatan projek: Dari tumbuh-tumbuhan ke sekaki  payung: Learning initiation of children through project approach: From plants to  umbrella. Jurnal Pendidikan Awal Kanak-Kanak Kebangsaan, 5,  78–95.  

Abu-Yazid, M., Mohd-Taib, F. S., Abdul-Musid, N., Sohimi, N., Mohamed, S., Affandi,  H., Masnan, A. H., Rahim, F. (2021). Malaysian Nature Education in Preschool  (MYNEPS) Intervention: Pre and Post Assessment. 13. 41-59.  

Affendi, A., Masnan, A. H. (2022). Exploring Outdoor Classroom Learning as an   extension of indoor classroom learning in preschool. Evaluation studies in social  sciences, 3(2), 10-24. 

Ahmad Shuib. Perumai, T., & Lee, N. (2013). Research Methodology Selangor:Open  University Malaysia 

Amanda Goldrick. (2018). Kaedah pengkajian: Sorotan Kajian. Selangor: Open   University Malaysia 

Anuradha Sachdev. (2017). World through the Eyes of Children: A Qualitative Study of  Preschool Children’s Understanding of the World. Pennsylvania: Lehigh University. 

Barrable, A., & Booth, D. (2020). Nature connection in early childhood: A quantitative  cross-sectional study. Sustainability, 12(1), 375.   

Beery, T., Chawla, L., & Levin, P. (2020). Being and Becoming in Nature: Defining   and Measuring Connection to Nature in Young Children. International Journal of   Early Childhood Environmental Education, 7(3), 3-22. 

Brusaferro, V. R. (2020). Shaping “Little” ecological worldviews: A case study of  ecological identity indicators at forest preschool. ProQuest Dissertations & Theses  Global; Publicly Available Content Database.  (2415738360).  

Carolee. & Heather. (2014). Shaping The Future We Want. Paris: United Nations  Education. 

Chee, J., Nor, M. M., Othman, A. J., & Rahman, M. N. A. (2018). Isu Pengetahuan  kandungan, pedagogi dan teknologi dalam kalangan guru tadika. JuKu: Jurnal  Kurikulum & Pengajaran Asia Pasifik, 6(1), 7-21. 

Chua, Y. P. (2006). Kaedahdan Statistik Penyelidikan. Kuala Lumpur: McGraw Hill. 

Chua. (2021). Kaedah pengkajian. (Edisi ke4). Kuala Lumpur: McGraw-Hill  Education  Sdn Bhd. 

Cordiano, T. S., Lee, A., Wilt, J., Elszasz, A., Damour, L. K., & Russ, S. W.  (2019).  Nature-Based Education and Kindergarten Readiness: Nature-Based and Traditional  Preschoolers Are Equally Prepared for  Kindergarten. International Journal of early  childhood environmental education, 6(3), 18-36. 

Creswell, J.W. & Miller, D.L., (2010). Determining Validity in Qualitative Inquiry,   Theory Into Practice, 39:3, 124-130. 

Creswell, J. W. (2013). Qualitative Inquiry and Research Design-Choosing Among   Five Traditions. (Edisi ke-3). London: SAGE Publication. 

Creswell, J. W. (2014). Research Design: Qualitative, Quantitative and Mixed Methods  Approaches (4th ed.). Thousand Oaks, CA: Sage. 

Dasar Wawasan Negara. Matlamat dan Rangka Dasar. Available from   https://www.icu.gov.my/pdf/artikel/DWN.pdf [Accessed: 13/2/2022]. 

DeGoede. A. (2023). Elementary Administrators’ Perspectives and Experiences of Supporting Students Through Nature-Based Learning (Doctoral dissertation, Walden University). 

Dell, L. (2018). Nature preschool through the eyes of children (Doctoral dissertation,  University of Cincinnati). 

DelVecchio, B. L. (2021). Exploring Changes in Children’s Nature Play Practices and  Caregiver Perceptions in the Context of COVID-19 (Doctoral dissertation, University  of Massachusetts Boston).  

Desmond, D. F. (2019). Pengetahuan Lokal Tentang Alam Sekitar Dalam Pengajaran   dan Pembelajaran Bahasa Kadazandusun. [Izajah Sarjana/Universiti Pendidikan  Sultan Idris] 

Donald J. & Jolie. (2011).  Listening to Children: Perceptions of Nature. Journal of   Natural History Education and Experience 5: 27-43. 

Ernst, J. & Burcak, F. (2019). Young Children’s contributions to sustainability: The  influence of nature play on curiosity, executive function skills, creative thinking,  and resilience. Sustainability, 11(15), 4212.  

Ernst, J., McAllister, K., Siklander, P., & Storli, R. (2021). Contributions to  sustainability through young Children’s nature play: A systematic  review. Sustainability, 13(13), 7443.  

Green, N. C., Christopher, V., & Turner, M. (2022). A content analysis of documentation  of nature play in early childhood teacher education program in Australia. Australian  Journal of Teacher Education (Online), 47(5), 15-32. 

Gunseli. & Guzin. (2017). The Effect of Outdoor Learning Activities on The  Development of Preschool Children. Turkey: Dokuz Eylul University. 

Halim, Abdul & Abdul, Masnan & Masnan, Abdul Halim & Josin, Elyssa & Zain,  Azizah & Arifah, Nur & Zainudin, Syahindah. (2018). Environmental Preschool  Education Module Based on Higher Order Thinking Skills (HOTS). 8. 1442- 1449.  10.7456/1080SSE/193.  

Hamidi. Rokiah. & Wahida. (2004). Sumbangan Teori Sistem dalam Pemantauan  Pengurusan Alam Sekitar Holistik. Kedah:Jabatan Pengurusan Alam Sekitar. 

Jamie. (2017). Indoor Nature Based Art Activities: The Themes Students Discuss  Nature Based Art While Creating Nature Based Art. Ward: Prescott College. 

Jancaríková, K. (2021). Czech preschool Children’s conceptions about  nature. Sustainability, 13(19), 10962.   

Jasmi, K. A. (2012). Kesahan dan Kebolehpercayaan dalam Kajian Kualitatif in Kursus  Penyelidikan Kualitatif. Fakulti Tamadun Islam. Universiti Teknologi Malaysia. 

Karl Linn. Et al,. (1977). Children, Nature and The Urban Enviroment: Proceeding  of a  Symposium-Fair. Washington: Forest Service. 

Kellert. (1984). American Attitudes Toward and Knowledge of Animals: An   American Attitudes Toward and Knowledge of Animals: An Update.  Washington: Well Being International. 

Kementerian Alam Sekitar dan Air (2022). Portal Rasmi Jabatan Alam Sekitar.   Available from:https://www.doe.gov.my/portalv1/tentang- jas/pengenalan/dasar-alam- sekitar. [Accessed: 11/2/2022]. 

Kementerian Kesihatan Malaysia. (2010). Portal Rasmi Bahagian Sumber  Manusia.  Avaiable from:  http://humanres.moh.gov.my/v2/modules/smartfaq/faq.  [Accessed: 19 Jun 2021]. 

Kementerian Pendidikan Malaysia. (2017). Kurikulum Standard tadika Kebangsaan. Pendidikan tadika. Bahagian Pembangunan Kurikulum. 

Koc. A. (2023). Curiosity of preschool children (4-6 years of age) about religious and moral issues. Religions, 14(2).260.  

Kuo, M., Barnes, M., & Jordan, C. (2019). Do experiences with nature promote learning?  Converging evidence of a cause-and-effect relationship. Frontiers in psychology, 10,  305 

Larimore, R. A. (2021). Investigating teacher-child interactions in a nature-based and non-nature preschool. Michigan State University. 

Lebar, O. (2021). pengkajian Kualitatif Pengenalan kepada teori dan metode. Perak:  Universiti Pendidikan Sultan Idris. 

Lewis, M., Bromley, K., Sutton, C.J. et al. Determining sample size form progression criteria for pragmatic pilot RCTs: the hypothesis test strikes back!. Pilot Feasibility Stud 7, 40 (2021).  

Lindgren, A. M. (2020). The development of teacher agency in nature preschools: Perceptions of teachers and directors. (Doctoral dissertation, Concordia University Chicago). 

Lindsey, H. J. (2019). The dirt of development: Nature's role in social-emotional  development and parent-child connectedness. West Virginia University. 

Lopez, V., & Whitehead, D. (2013). Sampling data and data collection in qualitative  research. Nursing & midwifery research: Methods and appraisal for evidence-based  practice, 123, 140. 

Masnan, A. H. & Zulfikri, A. & Hanafi, H. (2020). The Knowledge of Basic Survival Skills Among Preschool Children (Pengetahuan Keterampilan Bertahan Hidup Dasar pada Anak tadika). 3. 58-64.10.32505/atfaluna.v3i1.1617.  

Masnan, A. H., Anthony, N. E., & Zainudin, N. A. S. (2019). Pengetahuan pengajaran dalam kalangan guru tadika. Jurnal Pendidikan Awal Kanak-Kanak  Kebangsaan, 8, 33-41. 

Merriam S. B. (2009). Qualitative research: A Guide to design and implementation: Revised and expended from qualitative research and case study applications in education. San Franscisco:Jossey-Bass. 

Merriam, S. B. (1998). Qualitative Research and Case Study Applications in Education.  Revised and Expanded from" Case Study Research in Education.". Jossey-Bass  Publishers, 350 Sansome St, San Francisco, CA 94104. 

Miles M. B. & Huberman, A. M. (1994). Qualitative data analysis: An expanded sourse  book. London: Sage Publication.  

Mohamed, S., Sulaiman, N. F., Satari, N., & Toran, H. (2019). Preschool Teachers’ Knowledge and Practice on Social-Emotional Learning. Religación. Revista De Ciencias Sociales Y Humanidades, 4(19), 207-211.  

Mohd Tobi, S. U. (2017). Kajian Kualitatif dan Analisis Temu Bual. Kuala Lumpur:   Aras  Publisher. 

Mujahidah. (2015). Implementasi Teori Ekologi Bronfenbrenner Dalam Membangun  Pendidikan  Karakter Yang Berkualitas. IAIN Samarinda. 

Muh Haris. (2018). Teori-Teori Ekologi, Psikologi dan Sosiologi Untuk Menciptakan  Lingkungan Pendidikan Islam. Kalimantan Selatan: Dosen STIQ  Amuntai. 

Munawir, N. S. (2021). Keberkesanan Pengajaran Guru tadika Bagi Mencapai Strategi Pengajaran: Satu Kajian Kes di Negeri Perak dan Selangor. Jurnal Kesidang, 6(1), 30-43. 

Mustafar, F. W., Hamdan, M. H. D., Jusoh, N., & Mustafar, S. (2020). Penjagaan Alam  Sekitar Menurut Maqasid Syariah Dan Undang-Undang. Journal of Law and  Governance, 3(1), 96-112. 

Myers, S. (2018). In british columbia's nature programs where hearts are rooted: A   multiple case study of nature education in early childhood education.  (Doctoral dissertation, Royal Roads University (Canada)). 

Neupane, N. (2020). Conceptualizing the Pathways of Literature Review in  Research. Journal of Practical Studies in Education. 

Nida. (2021). An Action Research On Program Development Process For  Determining Multiple  Intelligences Profiles Of 1st, 2nd, and 3rd Graders. The Middle East Technical University. 

Nor’ Aqilah, A. (2017). Analisis Pengetahuan Nilai Motivasi dan Amalan Kelestarian Alam Sekitar Dalam Kalangan Bakal Guru Sains. Universiti Pendidikan Sultan Idris.  

 Norton, S. C. (2022). Exploration: Nature-based preschools (NBPS) and the level of job  satisfaction for early childhood educators. (Doctoral dissertation, Southern New Hampshire University). 

Omidvar, N., Wright, T., Beazley, K., & Seguin, D. (2019). Investigating Nature- Related Routines and Preschool Children's Affinity to Nature at Halifax  Children's  Centers. International Journal of Early Childhood Environmental  Education, 6(2),  42-58. 

Osman, Z., Zain, A., & Che Mustafa, M. (2019). Interaksi Guru dengan Kanak-Kanak  Menggunakan Kemahiran Berfikir Aras Tinggi. International Journal of Education,  Psychology and Counseling, 4 (32), 20-28. 

Pisal, N. A., & Teh, K. S. M. (2019). Kajian Rintis Strategi Pembelajaran Kemahiran  Berbahasa Arab. e-BANGI Journal, 16(7). 

Politte, M. & Frisch, J. (2022). When St. Louis School Nature Leaders and Environmental Partners Work Together Nature-based Learning Inspires Joy and Curiosity in K-2 Students (Doctoral dissertation, University of Missouri-Saint Louis). 

Qi, Y. (2022). Teachers’ practices in preschool science education: A comparison study  between USA and china. University of California, Los Angeles. 

Rahman, N. A., & Yusop, N. A. M. (2020). A Novel Environmental Sustainable   Composting Project Among Preschool Children/Kelestarian Alam Dalam Kalangan  Kanak-Kanak Menerusi Projek Penghasilan Baja Kompos. Sains Humanika, 12(2). 

Raman, F. I., & Bakar, K. A. (2019). Amalan kelestarian alam sekitar dalam kalangan  guru prasekolah. Geografia: Malaysian Journal of Society and Space, 15(2), 15-30. 

Ramanathan, G. (2021). An exploration of the nature of social interactions between  preschool students with diverse social-emotional skills during engineering activities.  

Riyan J.G. van den Born, B. Arts, J. Admiraal, A. Beringer, P. Knights, E. Molinario, K.  Polajnar Horvat, C. Porras-Gomez, A. Smrekar, N. Soethe, J.L. Vivero-Pol, W.  Ganzevoort, M. Bonaiuto, L. Knippenberg & W.T. De Groot (2018) The missing  pillar: Eudemonic values in the justification of nature conservation. Journal of  Environmental Planning and Management, 61:5-6, 841-856 

Robinson, V. M. (2021). Teacher Perceptions of Skills Benefits, and Challenges of Training for Nature-Based School Teaching (Doctoral dissertation, Walden University). 

Roostin, E., & Swandhina, M. (2019). Pembelajaran Sains Untuk Anak Usia Dini Dengan Model Pembelajaran Sentra Bahan Alam. TEKNODIKA: Jurnal Penelitian Teknologi Pendidikan. 17(2). 

Sugrah. (2019). Implementasi Teori Belajar Konstruktivisme Dalam Pembelajaran  Sains.  Falkutas Keguruan dan Ilmu pendidikan Universitas Khairun.19(2). 

Siti Misra. Henny. Marwah. (2021). Inovasi Pembelajaran Anak Usia Dini Berbasis Kearifan Lokal Kegiatan Eco Print di Masa Pendemic Covid-19. Jurnal Obsesi: Jurnal Pendidikan  Anak Usia Dini. 

Skalstad, I. & Munkebye, E. (2021). How to support young children’s interest development during exploratory natural science activities in outdoor environments. Teaching and Teacher Education. 

Solihin, R., Iqbal, M., & Muin, M. (2021). Konstruksi Kompetensi Pedagogik Guru  dalam Pembelajaran. Scaffolding: Jurnal Pendidikan Islam Dan Multikulturalisme, 3(2), 85-94.  

Sugrah, N. (2019). Implementasi teori belajar konstruktivisme dalam pembelajaran  sains. Humanika, Kajian Ilmiah Mata Kuliah Umum, 19(2), 121-138. 

Temiz, Z., & Semiz, G. (2018). Combining art activities and nature in pre-school education. Erken Çocukluk Çalismalari Dergisi, 2(3), 556-570. doi:http://dx.doi.org/10.24130/eccd-jecs.1967201823103 

Thabane, L., Et, al. (2010). A tutorial on pilot studies: the what, why and how. BMC medical research methodology, 10, 1.  

Welz, A. (2014). Experiences of early childhood educators in a nature-based, early learning program: A case study. (Doctoral dissertation). 

Yin, R. K. (2015). Qualitative reasearch from start to finish (2nd ed.) New York, NY:  Guilford Publications. 

Zakaria, M. A., Ahmad, M. F. & Rahman, M. K. A. (2021). Pendidikan dan seni teater:  Penerokaan pengetahuan Pedagogikal isi kandungan (PPIK) Lakonan oleh Jurulatih  Di Sekolah Seni Malaysia. Jurnal Dunia Pendidikan. 3(3), 415-427