Md Saad, Noor Azam, Astuty Amrin, and Khairur Rijal Jamaludin. 2020. “Strategic Deployment of Lean Six Sigma in Managing Inventory Escalation Issue”. Journal of Advanced Research in Business and Management Studies 18 (1):7-15. https://www.akademiabaru.com/submit/index.php/arbms/article/view/1347.