AZZHAR, HANNAH BATRISYIA, Mohd Faizal Tukimon, Shahrin Hisham Amirnordin, Md Asrul Nasid Masrom, and Mohammad Faizal Jabbar. 2026. “Characterization and Analysis of Bottom Ash Derived from The Combustion of Empty Fruit Bunch (EFB) for Potential Fertilizer”. Research Progress in Mechanical and Manufacturing Engineering 7 (1): 396-407. https://publisher.uthm.edu.my/periodicals/index.php/rpmme/article/view/22332.