Jong RP, Shayuri MIA, Yassin A, A. Kamaruddin AMN. Thermal Performance Evaluation of a Small-Scale Drying Machine for Palm Oil Mill Sludge. IJIE. 2023;15(5):6-12. Accessed August 7, 2026. https://journal.uthm.edu.my/index.php/ijie/article/view/14049