H. Mahat, M. S. Y. Che Ngah, and S. Idrus, “Satu Kajian Pentingnya Pengetahuan Guru dalam Pelaksanaan Program Sekolah Lestari di Malaysia: A Study on the Importance of Teachers’ Knowledge in The Implementation of the Program of Sustainable Schools in Malaysia”, PERS, vol. 5, no. 2, pp. 75–92, Nov. 2013, Accessed: Dec. 05, 2025. [Online]. Available: https://ejournal.upsi.edu.my/index.php/PERS/article/view/1638