1. Sarason SB. What research says about test anxiety in elementary school children. NEA J. 1959;48:26–7.
2. Coburn D, Jovaisas AV. Perceived sources of stress among first year medical students. J Med Edu. 1975;50:589–95.
3. Edwards MT, Zimet CN. Problems and concerns among medical students-1975. J Med Edu. 1976;51:619–25.
4. Spielberger CD. Manual for the test anxiety inventory. Palo Alto, CA: Consulting Psychologists Press; 1980.
5. Sartorius N, (ed). Anxiety: Psychological and Clinical Perspectives. Washington: Hemisphere/Taylor and Francis; 1991.