Altavilla, Gaetano, Dante Forte, and Tiziana D’Isanto. “Self-Physical and Emotional Perception in Volleyball for Drop Out”. Journal of Human Sport and Exercise 14, no. 4proc (October 24, 2019): S1022-S1029. Accessed May 19, 2024. https://www.jhse.ua.es/article/view/2019-v14-n4-proc-self-physical-emotional-perception-volleyball-d.