Prandini, M.N. and Rahmayanti, M. 2020. Effect pH Adsorption of Naphtol Dye Using Humic Acid Adsorbent Result of Peat Isolation from Kalimantan. Proceeding International Conference on Science and Engineering. 3, (Apr. 2020), 147–151. DOI:https://doi.org/10.14421/icse.v3.486.