Derahim, Norfadillah, Halimaton Saadiah Hashim, and Noraziah Ali. 2013. “Tahap Kelestarian Pelajar Universiti Kebangsaan Malaysia Ke Arah Kampus Lestari”. Jurnal Personalia Pelajar, no. 14 (November). https://spaj.ukm.my/personalia/index.php/personalia/article/view/22.