Mariapan, U., Mahat, H. and Nayan, N. (2018) “Kajian Penggunaan Air Secara Lestari dalam Kalangan Pelajar Sekolah Menengah: Sustainable Water Usage among Secondary School Students”, GEOGRAFI, 6(1), pp. 31–40. Available at: https://ojs.upsi.edu.my/index.php/GEOG/article/view/2077 (Accessed: 14 April 2024).