Erika Borrajo, Garazi Azanza, and Itziar Urquijo. “An Adaptation of the Psychological Capital Questionnaire for the Sports Environment”. Revista de Psicología del Deporte (Journal of Sport Psychology) 31, no. 4 (March 20, 2023): 176–185. Accessed November 28, 2024. https://mail.rpd-online.com/index.php/rpd/article/view/1005.