Assessment of MBBS medical students using (OSCE), comparing the modified borderline group method (MBGM), the modified Angoff method (MAM) and the holistic method of 50% - Ounsa, Mohamed Ahmed A/Gadir Elimam; Mohamed, Elsadig Yousif; Taha, Elmuntasir (International Journal of Advance Research and Innovative Ideas In Education, 2016)