“PSYCHOLOGICAL GUIDANCE PROGRAM FOR PSYCHOLOGICAL STRESS AND ITS RELATIONSHIP TO THE SENSE OF CAPABILITY FOR EMERGING PLAYERS (AGED 14-16) DURING PENALTY KICK IN SOCCER”.
American Journal of Pedagogical and Educational Research 15 (August 25, 2023): 156–171. Accessed September 30, 2026.
https://americanjournal.org/index.php/ajper/article/view/1163.