Muhaimin, Abdul, and Fredy Kurniawan. 2018. “THE EFFECT OF ADDITIVE TYPE "X" WITH FOAM AGENT AND COCONUT FIBER ON CONCRETE”. IJTI International Journal of Transportation and Infrastructure EISSN 2597-4769 PISSN 2597-4734 2 (1), 1-7. https://doi.org/10.29138/ijti.v2i1.778.