Ali, Wissam. “The Role of 5S Practices in Raising Productive Efficiency: An Exploratory Study in UR State Company”. Ibn Khaldoun Journal for Studies and Researches 2, no. 4 (June 6, 2023). Accessed April 30, 2026. https://www.benkjournal.com/index.php/benkj/article/view/420.