عباس م.ع.ا. 2019. The role of lean manufacturing system in improving the performance of operations A case study in the Southern Cement General Company (Old Kufa Cement Plant). Journal of the College of Education for Girls for Humanities. 4, 24 (Sep. 2019), 393–417. DOI:https://doi.org/10.36327/ewjh.v4i24.9097.