ولي أ. إ. . and حمد س. ب. ., “The Role of Empowering Workers in Promoting the Marketing of Health Services: An Analytical Study of the Opinions of Workers in a Sample of Private Hospitals in the City of Erbil / Kurdistan Region of Iraq”, Polytechnic J. Hum. Soc. Sci., vol. 4, no. 1, pp. 539-565, Apr. 2023.