Ndukum, P.L. , Encho, L.T. , Soh , M. and Okolo, A. 2024. Optimal ordering quantity by retailer from supplier with transportation cost in a supply chain. JOURNAL OF ADVANCES IN MATHEMATICS. 23, (Apr. 2024), 74–83. DOI:https://doi.org/10.24297/jam.v23i.9602.