Gutiérrez Vargas, Juan Carlos, Randall Gutiérrez Vargas, and Pedro Ureña Bonilla. “General Self-Efficacy, Pre-Competitive Anxiety and Flow Feeling in Handball Team Players from Costa Rica’s Nactional Team”. MHSalud: Revista en Ciencias del Movimiento Humano y Salud 10, no. 2 (December 31, 2013). Accessed December 4, 2022. https://www.revistas.una.ac.cr/index.php/mhsalud/article/view/5582.