Mbewe, Serah. “Lean Management Systems in Knowledge Institutions: A Case of ZCAS University: A Case of ZCAS University”. Advances in Social Sciences Research Journal 6, no. 8 (August 19, 2019): 137–143. Accessed November 23, 2024. http://116.203.177.230/index.php/ASSRJ/article/view/6931.