Mabrouka A. Ghaith, and Awatef H. M. Abu-Qoffah. “The Stability of Eigenvalues and Eigenvectors and Their Impact on Differential Systems”. Journal of Pure & Applied Sciences 21, no. 4 (October 3, 2022): 65–68. Accessed November 24, 2024. https://sebhau.edu.ly/journal/jopas/article/view/2127.