-, Lazulva, and Wiwit Widia Sari. “UJI KUALITAS KARBON AKTIF DARI KULIT UBI KAYU (MANIHOT ESCUENTA CRANTZ)”. Photon: Journal of Natural Sciences and Technology 3, no. 2 (May 30, 2013): 33-37. Accessed May 16, 2025. https://ejurnal.umri.ac.id/index.php/photon/article/view/158.