Prandini, Masyithah Nisvi, and Maya Rahmayanti. “Effect PH Adsorption of Naphtol Dye Using Humic Acid Adsorbent Result of Peat Isolation from Kalimantan”. Proceeding International Conference on Science and Engineering 3 (April 30, 2020): 147–151. Accessed March 23, 2025. http://sunankalijaga.org/prosiding/index.php/icse/article/view/486.