Khozani, Mojtaba Salemi, Kaveh Khabiri Khabiri, Bahram Ghadimi, Sepideh Mehraein, and Aida Mehrad. 2017. “The Comparison of Aggression Between Professional and Semi-Professional Male Taekwondo Athletes in Isfahan, Iran”. Journal of Educational, Health and Community Psychology 6 (2):34-45. https://doi.org/10.12928/jehcp.v6i2.6943.