Handayani, T., Mandasari, F., Ellysa, E. and Pranata MH, A.A. 2022. Optimization Compresion Strength Of Concrete Using The Deterministic System With Simpleks Method . Jurnal Ilmiah Multidisiplin Indonesia (JIM-ID). 1, 02 (Jul. 2022), 52–57. DOI:https://doi.org/10.58471/esaprom.v1i02.339.