[1]
R. N. Butris, “Periodic Solution for Nonlinear System of Differential Equations Depending on The Gamma Distribution”, SJUOZ, vol. 2, no. 1, pp. 204–212, Jun. 2014, Accessed: Jan. 14, 2026. [Online]. Available: https://sjuoz.uoz.edu.krd/index.php/sjuoz/article/view/164