[1]
R. A. Ningrum, R. T. Salawali, M. D. Arief, J. G. A'ban, and M. Mahdiah, “Physical-Chemical Characterization of Activated Charcoal from Coconut Shells as an Adsorbent in Reducing Ammonia (NH₃) Levels in Industrial Liquid Waste”, satera, vol. 4, no. 1, pp. 1–8, Feb. 2026.