Azrial, Fahmi, Fahrizal Sahdan, Okta Angelia Putri, and Ika Listiana. “Bioremediation Based on Palm Oil Sludge As an Intervention for Heavy Metal Pollution Risk in Industrial Residential”. Environmental and Materials 2, no. 2 (December 31, 2024): 127–142. Accessed August 24, 2025. https://journal-iasssf.com/index.php/EAM/article/view/1641.