A. Al-moayad, A. Al-saadi, A. Ajlan, N. Noraldeen, و R. Shaher et al, "Knowledge, Attitude, and Barriers Towards Medical Research Among Medical Students in 21september university", 21UMAS Institutional Repository, م 4, عدد 1, ص 1–41, ديسمبر 2023, doi: 10.65693/irss.2023.v4i1.433.