Amin, M.; Birawidha, D. C.; Isnugroho, K.; Hendronursito, Y.; Sumardi, S.; Ario, S.; Syafriadi, S.; Al-Muttaqii, M. THE INFLUENCE OF BASALT MINERALS AS CEMENT SUBSTITUTION MATERIALS IN MORTAR. Acta Polytech 2019, 59, 536-542.