H. Elzobaidy , Dakhel, et al. “The Post Graduate Studies-Reality and the Future Horizons (A Case Study in the Faculty of Agriculture University of Omar Al-Mouktar)”. Al-Mukhtar Journal of Sciences, vol. 12, no. 1, Dec. 2005, pp. 36-46, doi:10.54172/mjsc.v12i1.540.