Gil Arias, Alexander, M. Perla Moreno Arroyo, Alberto Moreno Domínguez, Luís García González, and Fernando Del Villar Álvarez. 2011. “Estudio Del Saque En jóvenes Jugadores As De Voleibol, Considerando La Eficacia Y función En Juego (Study of Service in Young Volleyball Players, Taking into Account Efficacy and Role Play)”. Retos 19 (January): 19-24. https://doi.org/10.47197/retos.v0i19.34630.