FOKALI, C. ., and H. . SIAGIAN. “The Impact Of Lean Manufacturing On Operational Performance Through Vendor-Managed Inventory And Supply Chain Practices”. The Journal of Contemporary Issues in Business and Government, vol. 27, no. 2, Apr. 2021, pp. 5346-5, https://cibgp.com/au/index.php/1323-6903/article/view/1436.