Hendronursito, Y., M. Amin, K. Isnugroho, and D. C. Birawidha. “SAND CASTING MANUFACTURER WITH MATERIAL ADDITIVE TO PERMEABILITY AND GREEN COMPRESSIVE STRENGTH CHARACTERISTIC”. MECHANICAL ; Jurnal Ilmiah Teknik Mesin, vol. 10, no. 2, Apr. 2020, pp. 34-40, doi:10.23960/mech.v10i2.1127.