Hasbiyati, Ihda, Rama Desri, and Moh Danil Gamal. “PRE-EMPTIVE GOAL PROGRAMMING METHOD FOR OPTIMIZING PRODUCTION PLANNING”. BAREKENG: Jurnal Ilmu Matematika dan Terapan 17, no. 1 (April 15, 2023): 0065-0074. Accessed May 4, 2024. https://ojs3.unpatti.ac.id/index.php/barekeng/article/view/6578.