SamudraFerdianto Budi, Sitorus Santun RP, Edi Santosa, and Machfud Machfud. “Systems Dynamic Modeling on Sustainable Apples Agriculture”. Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) 11, no. 4 (January 13, 2022): 567-577. Accessed March 29, 2024. https://jurnal.ipb.ac.id/index.php/jpsl/article/view/38074.