Salem . AL-Ashhab, و Muftah .,A., Alhammale. 2023. "On the Limit of Two Dimensional Systems of Difference Equations With One Independent Equations ". مجلة روافد المعرفة 4 (8):164-80. https://ra.azu.edu.ly/index.php/rawafed-almarefa/article/view/81.