Ningrum, Resti Ayu, Rismul Trianto Salawali, Maipha Deapati Arief, Jamaluddin Gesrianto A'ban, and Mahdiah Mahdiah. “Physical-Chemical Characterization of Activated Charcoal from Coconut Shells As an Adsorbent in Reducing Ammonia (NH₃) Levels in Industrial Liquid Waste”. Jurnal Sains dan Teknik Terapan 4, no. 1 (February 25, 2026): 1–8. Accessed August 13, 2026. https://journal.akom-bantaeng.ac.id/index.php/jstt/article/view/72.