Lapu Kalinggoru, Sapherdi, Safrin Zuraidah, and K. Budi Hastono. “PEMANFAATAN CANGKANG KELAPA SAWIT SEBAGAI SUBSTITUSI AGREGAT KASAR UNTUK CAMPURAN PEMBUATAN BETON: UTILIZATION OF PALM SHELLS AS A SUBSTITUTION FOR COARSE AGGREGATE FOR CONCRETE MIXTURE”. CONCRETE: Construction and Civil Integration Technology 2, no. 02 (November 4, 2024): 201-2016. Accessed April 26, 2025. https://ejournal.unitomo.ac.id/index.php/concrete/article/view/8307.