"CONSTRUCTION OF SUITABLE LYAPUNOV FUNCTIONS FOR SYSTEMS OF LINEAR AND NONLINEAR DIFFERENTIAL EQUATIONS WITH STABILITY OF THEIR TRIVIAL SOLUTIONS" (2021) FULafia Journal of Science and Technology, 7(2), ص 33–36. موجود في: https://lafiascijournals.org.ng/index.php/fjst/article/view/149 (تاريخ الوصول: 17 مايو 2026).