Botahala, Loth, Yanti Malailak, Herlin Silvia Maure, and Hagar Karlani. “Determination of Effectiveness Absorption of The Rice Husk And Hazelnut Shell to Purification Used Cooking Oil”. Jurnal Akta Kimia Indonesia (Indonesia Chimica Acta) 12, no. 1 (May 30, 2019): 19-28. Accessed November 23, 2024. https://journal-old.unhas.ac.id/index.php/ica/article/view/6172.