Murad, N. S. .; Alkutubi , H. S.; Al Shamary, N. M. Using Regression Model to Study the Significant Differences in the Number of Covid-19 Infections . Jour. Kufa Math. Comp. 2024, 11 (1), 55-62. https://doi.org/10.31642/JoKMC/2018/110109 .