R. Mufti, A. Setiawan, A. . Dabet, A. Alchalil, M. . Absa, and M. Iqbal, “Retort Kiln Carbonization of Wet and Dry Young Coconut Wastes: Effects on Biochar Quality and Processing Efficiency”, DISJOME, vol. 13, no. 1, pp. 17–23, Jun. 2025.