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Kenneth Miebaka Oba. Optimization of Shipping Cost of Cement for Selected Construction Projects of Julius Berger. int. j. eng. mgmt. res. [Internet]. 2023 Apr. 24 [cited 2024 Mar. 29];13(2):136-41. Available from: https://ijemr.vandanapublications.com/index.php/ijemr/article/view/1167