Alashwal, A. M., M. Al-Yadoomi, and J. A. Hazza’a. “Quality Performance Development and Raising the Efficiency of Institutional Planning in Higher Education- the Experience of Faculty of Engineering, Sana’a University”. The Arab Journal For Quality Assurance in Higher Education, vol. 4, Jan. 2011, doi:10.20428/ajqahe.v4i0.600.