A. H. ABDUL RASIB , M. MUSAZALI. “UNDERSTANDING OF NON-VALUE ADDED OVERTIME IN MANUFACTURING OPERATIONS”. PalArch’s Journal of Archaeology of Egypt Egyptology, vol. 17, no. 6, Nov. 2020, pp. 9803-14, https://www.archives.palarch.nl/index.php/jae/article/view/2550.