USING THE TECHNIQUE OF QUALITY FUNCTION DISSEMINATION (QFD) IN CONTROLLING COSTS AND IMPLEMENTING THE DIFFERENTIATION STRATEGY (AN APPLIED STUDY IN THE UR STATE COMPANY FOR ENGINEERING INDUSTRIES). Wor.econo. and fin. Bul. [Internet]. 2022 Sep. 14 [cited 2026 Jan. 14];14:174-82. Available from: https://scholarexpress.net/index.php/wefb/article/view/1387