Al-Nashmi, Assoc. Prof. Dr. Murad Mohammed, and Dr. Muna Saleh Saleh Al-Ghashmi. “Impact of Employees’ Performance on Achieving Competitive Advantage: A Field Study in the Mobile Phone-Run Companies in Sana’a”. Journal of Social Studies 26, no. 1 (April 7, 2020): 81–108. Accessed January 9, 2025. https://journals.ust.edu/index.php/JSS/article/view/1623.