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”, Int J Sci Res Sci Eng Technol, vol. 11, no. 4, pp. 384–412, Aug. 2024, doi: 10.32628/IJSRSET25121176.