Osama Hawi Aziz Al-Tai / Mahmood Fahad Abid Ali Al-Dulami. (2022). The strategy S5 and its role in reducing product cost An analytical study of the opinions of a sample of workers in the production department of the Central Refineries Company. (Humanities, Social and Applied Sciences) Misan Journal of Academic Studies , 21(44), 149-171. Retrieved from https://misan-jas.com/index.php/ojs/article/view/380