Yaacob, Asmanira, and Norazilawati Abdullah. “Environment Education for Sustainable Development (SD) Among Primary School Teachers”. EDUCATUM Journal of Social Sciences 9, no. 2 (December 22, 2023): 35–42. Accessed November 24, 2024. https://ejournal.upsi.edu.my/index.php/EJOSS/article/view/8940.