“Analysis of Oil and Fat Content in Palm Oil Industry Wastewater Gravimetric Analysis”,. ALKIMIA : Jurnal Ilmu Kimia dan Terapan 7, no. 1 (February 28, 2023): 341–346. Accessed May 10, 2025. https://jurnal.radenfatah.ac.id/index.php/alkimia/article/view/28124.