"CONSTRUCTION OF SUITABLE LYAPUNOV FUNCTIONS FOR SYSTEMS OF LINEAR AND NONLINEAR DIFFERENTIAL EQUATIONS WITH STABILITY OF THEIR TRIVIAL SOLUTIONS". FULafia Journal of Science and Technology 7, no. 2 (ديسمبر 31, 2021): 33–36. تاريخ الوصول مايو 17, 2026. https://lafiascijournals.org.ng/index.php/fjst/article/view/149.