Osama Hawi Aziz Al-Tai / Mahmood Fahad Abid Ali Al-Dulami. 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. misan jas [Internet]. 2022Dec.30 [cited 2024Nov.23];21(44):149-71. Available from: https://misan-jas.com/index.php/ojs/article/view/380