Purba, Wesly Tua Panuturi, Juli Antasari Br Sinaga, and Rektor Sianturi. “Model Optimasi Goal Programming Pada Perencanaan Produksi Roti”. Jurnal Indragiri Penelitian Multidisiplin 4, no. 3 (September 30, 2024): 71–77. Accessed July 5, 2025. https://www.ejournal.indrainstitute.id/index.php/jipm/article/view/1066.