Faizin, Nur, Hegy Eka Anugrah, and Zeni Ulma. “Analisis Fisis Briket Berbahan Baku Sludge Biogas Dengan Perekat Daun Randu (Ceiba Pentandra)”. Jurnal Teknologi Sumberdaya Mineral 3, no. 2 (December 21, 2022): 69–80. Accessed November 5, 2025. https://jeneral.jurnal.unej.ac.id/index.php/JENERAL/article/view/34350.