Fitri Armanda, and R. Filia Sari. “Optimization of Liquid Petroleum Gas (LPG) Gas Cylinder Distribution Route With Saving Matrix Method”. Numerical: Jurnal Matematika Dan Pendidikan Matematika, vol. 7, no. 1, June 2023, pp. 99-110, doi:10.25217/numerical.v7i1.3452.