1. The differences in self-learning disposition, test anxiety, and level of ambition between high and low achiever students in first grade of high school;Al Safi;Journal of Social Sciences,2002
2. American Psychiatric Association. (1994). Diagnostic and statistical manual of mental disorders (4th ed.). Washington, DC: American Psychiatric Association.
3. Mathematics anxiety and mental arithmetic performance: an exploratory investigation;Ashcraft;Cognition and Emotion,1994
4. Unravelling the mysteries of anxiety and its disorders from the perspective of emotion theory;Barlow;American Psychologist,2000
5. Coping with performance stress: a study of professional orchestral musicians in Canada;Bartel;The Quarterly Journal of Music Teaching and Learning,1994