“PENGARUH SUBSTITUSI SEMEN DENGAN MENGGUNAKAN ABU BATU BARA (FLY ASH) TERHADAP KUAT TEKAN PAVING BLOCK”, Kohesi, vol. 11, no. 5, Oct. 2026, Accessed: Oct. 18, 2026. [Online]. Available: https://journal.cib.institute/index.php/kohesi/article/view/5406