et. al., Dr. Maysoon M. Aziz,. “Analysis of Dynamical Behavior for Epidemic Disease COVID-19 With Application”. Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 4 (April 11, 2021): 568–577. Accessed May 9, 2024. https://turcomat.org/index.php/turkbilmat/article/view/538.