Nur Shaylinda Mohd Zin, Siti Nor Aishah Mohd Salleh, and Hamidi Abdul Aziz. Tapioca Starch Coagulant for Landfill Leachate Treatment. Penerbit UTHM, 2024. Accessed August 26, 2026. https://monograph.uthm.edu.my/index.php/penerbituthm/catalog/book/415.