Norkhaidi, Saiyidatina Balkhis, Hanifah Mahat, Mohmadisa Hashim, Yazid Saleh, and Nasir Nayan. “Penerokaan Indeks Pengetahuan Kelestarian Alam Sekitar Fizikal Dalam Kalangan Belia Malaysia”. Journal of Techno-Social 12, no. 2 (January 22, 2021): 48–59. Accessed July 25, 2024. https://penerbit.uthm.edu.my/ojs/index.php/JTS/article/view/7344.