“SISTEM PENDUKUNG KEPUTUSAN OPTIMASI CAMPURAN BETON PRODUK K-300 PT SARANG LAKSANA MANDIRI”, comasiejournal, vol. 4, no. 2, pp. 37–45, Jan. 2021, Accessed: Oct. 06, 2026. Available: https://ejournal.upbatam.ac.id/index.php/comasiejournal/article/view/3037