1. Guilbert JJ.Educational Handbook for Health Personnel. Geneva: WHO Offset Publication No. 15, 1981.
2. Richardson R.Diploma in Medical Education (Assessment). Centre for Medical Education, Ninewells Hospital and Medical School, Dundee (Scotland), Dundee: 1988.
3. Harden RM, Gleeson FA.Assessment of Medical Competence Using an Objective Structured Clinical Examination (OSCE). Dundee: ASME Medical Education Booklet. 1979.