riezky, riezkyfadhillah, and Rina Filia Sari. “Optimization of Potato and Carrot Production in Karo District Using the Beale Method”. KUBIK: Jurnal Publikasi Ilmiah Matematika 10, no. 1 (August 11, 2025): 66–77. Accessed December 18, 2025. http://103.55.33.27/index.php/kubik/article/view/49213.