Gbenga Omoegun, Joyce Efekpogua Fiemotongha, Julius Olatunde Omisola, Odira Kingsley Okenwa, and Osazee Onaghinor. “Systematic Review of Category Management and Spend Analytics in Engineering Supply Chains”. International Journal of Scientific Research in Science, Engineering and Technology 11, no. 4 (August 20, 2024): 384–412. Accessed May 25, 2025. https://ijsrset.com/index.php/home/article/view/IJSRSET25121176.