Godwin Uchechukwu Uke. “Lean Six Sigma-Driven Maintenance Process Optimization in African Manufacturing Industries: A Systematic Literature Review”. Journal of Computational Analysis and Applications (JoCAAA) 29, no. 6 (June 19, 2021): 1346–1366. Accessed October 22, 2026. https://eudoxuspress.com/index.php/pub/article/view/4028.