Osman Abdelkader Hama Amin, and Rojan Abdullah Hama Amin. “Strategic Cost Management and Its Role in Reducing Costs Using Business Process Reengineering A Case Study at City Steel Industrial Company”. The Scientific Journal of Cihan University– Sulaimaniya 4, no. 1 (June 1, 2020): 324-346. Accessed February 12, 2026. https://journal.sulicihan.edu.krd/index.php/sjcus/article/view/575.