2020. Pengaruh Pengurangan Setting Time (Wait on Cement) pada Semen Tahan Api dengan Penambahan Oil Well Cement: The Effect of Reducing Setting Time (Wait on Cement) on Fire Mortar by Increasing Oil Well Cement. MINERAL. 2, 1 (Jan. 2020), 40–46. DOI:https://doi.org/10.33019/mineral.v2i1.1548.