Essien, N. P. ., and M. C. . Umo. “CONCEPTUAL ANALYSIS OF OPTIMIZATION STRATEGIES IN OPERATING SYSTEM (WINDOWS AND UNIX) IN THE CURRENT IT TREND FROM 2015 TO 2023”. International Journal of Contemporary Africa Research Network, vol. 2, no. 1, June 2024, https://journals.iapaar.com/index.php/ijcarn/article/view/199.