Ogumeyo, S. A., F. S. S. Oloda, J. C. Ehiwario, and R. U. Adigwe. “Mathematical Models to Determine Optimum Inventory Level in a Supply Chain System”. Earthline Journal of Mathematical Sciences, Vol. 15, no. 1, Dec. 2024, pp. 85-103, doi:10.34198/ejms.15125.085103.