Fitri Armanda, and Rina Filia Sari. “Optimization of Liquid Petroleum Gas (LPG) Gas Cylinder Distribution Route With Saving Matrix Method”. Numerical: Jurnal Matematika dan Pendidikan Matematika 7, no. 1 (June 16, 2023): 99–110. Accessed July 14, 2025. https://www.journal.iaimnumetrolampung.ac.id/index.php/numerical/article/view/3452.