الحاوري عبد الغني أحمد علي, الهمداني فتحية محمد, and الحاج نجوى أحمد علي. 2017. “A Suggested Proposal for Marketing the University Services at Sana’a University on the Light of Supreme Arab and International Approaches”. Journal of Social Studies 23 (3):75-99. https://doi.org/10.20428/jss.v23i3.1235.