Oryza Safitri, and Mardlijah. “Kontrol Optimum Pada Model Prey-Predator Dengan Pemanenan Pada Ikan Prey Dan Ikan Predator”. Limits: Journal of Mathematics and Its Applications 16, no. 1 (August 15, 2019): 39–49. Accessed January 24, 2026. https://journal.its.ac.id/index.php/limits/article/view/5397.