Aminah, S., Ferawanda, F., Santoso, T., & Afadil, A. (2025). Utilization of Activated Charcoal from Cocoa Peel (Theobrema cacao L.) as Lead Adsorbent in Used Oil. Media Eksakta, 19(2), 102-109. https://doi.org/10.22487/me.v19i2.982