Shaladan, Fayez Kamal, and Hussam Refat Herzallah. “Obstacles of Search Engines Used by Graduate Students at The Faculty of Education, The Islamic University in Gaza”. The Arab Journal For Quality Assurance in Higher Education, vol. 11, no. 34, Mar. 2018, pp. 25-54, doi:10.20428/ajqahe.v11i34.1292.