Ginting, Santa Oktavia, and Risfidian Mohadi. “Adsorption of Congo Red Using Kaolinite-Cellulose Adsorbent”. Science and Technology Indonesia 2, no. 2 (April 10, 2017): 29–36. Accessed May 25, 2026. https://www.sciencetechindonesia.com/index.php/jsti/article/view/13.