A. Ristawati, A. Fattahanisa, P. Wijayanti, R. Kurniawati, and M. M. Ananta Ihza Hiswara, “Utilization of Organic Waste Coconut Shells as an Alternative Energy Source in the Laogo Area”, J. IJCS, vol. 6, no. 1, pp. 126–129, Feb. 2026.