Hussain Othman, Abdullah Sulaiman, Berhannudin Mohd Salleh, and Syed Muhammad Dawilah al Edrus, PBL - PEMBANGUNAN KOMUNITI LESTARI. Penerbit UTHM, 2009. Accessed: Jul. 18, 2024. [Online]. Available: https://penerbit.uthm.edu.my/omp/index.php/penerbituthm/catalog/book/52