Effect of a Psychological Skills Education Program (PSEP) on Free Kicks and Penalty Kicks For High School soccer player. مجلة علوم الرياضة, [S. l.], v. 12, n. 42, p. 212 – 227, 2020. DOI: 10.26400/sp/42/15. Disponível em: https://pessj.uodiyala.edu.iq/index.php/1/article/view/458. Acesso em: 18 2025.