Febrina, Wetri, Amir Awaluddin, Saryono Saryono, and Zuchra Helwani. “Karakterisasi Biochar Dari Tandan Kosong Kelapa Sawit”. JURNAL UNITEK 17, no. 2 (December 26, 2024): 293–301. Accessed January 7, 2025. https://ejurnal.sttdumai.ac.id/index.php/unitek/article/view/1150.