PEMANFAATAN LIMBAH TEMPURUNG KELAPA SEBAGAI SUBSTITUSI AGREGAT KASAR PADA BETON: UTILIZATION OF COCONUT SHELL WASTE AS A SUBSTITUTE FOR COARSE AGGREGATE IN CONCRETE. CONCRETE [Internet]. 2025 Nov. 10 [cited 2026 Jun. 16];3(02):207-15. Available from: https://ejournal.unitomo.ac.id/index.php/concrete/article/view/10525