Abdullatif Musleh Mohammed Ayedh, and Najeeb Mohammed Yahya Al-Beshari. 2021. “The Impact of Administrative Empowerment on the Achievement of Sustainable Competitive Advantage: A Field Study at Pharmaceutical Manufacturers in Yemen”. Journal of Social Studies 26 (3):1-28. https://doi.org/10.20428/jss.v26i3.1732.