Nukman, Saloma, Kaprawi Sahim, and Firdaus Muhammad Saleh. “THE EFFECT OF FINE COAL IN TUBE MOLDS WHEN POURING ALUMINUM ALLOY 6061 ON WEAR RATE AND HARDNESS VALUE”. GEOMATE Journal 19, no. 76 (December 28, 2020): 48–53. Accessed March 28, 2024. https://geomatejournal.com/geomate/article/view/872.