OLADIPO, ADENIKE, Olusoji Adewumi, and Akinleye Ogundiwin. ANNUAL JOURNAL OF TECHNICAL UNIVERSITY OF VARNA, BULGARIA 3, no. 2 (December 31, 2019): 39-53. Accessed August 20, 2025. http://194.141.24.9/index.php/ajtuv/article/view/139.