Ahmed, Mohammed Elhaj Alsoufi Mohammed, and Leong Sing Wong. “Assessment of Lean Construction Practice at Selected Construction Sites in Klang Valley”. International Journal of Engineering and Technology 7, no. 4.35 (November 30, 2018): 125–130. Accessed April 9, 2025. https://sciencepubco.com/index.php/IJET/article/view/22340.