Martínez-Caro, E., E. Martínez-Caro, and Díaz-Suardíaz A. “Services Quality on Grassroots Football Clubs in the Region of Murcia. An Application of the Importance-Performance Analysis”. SPORT TK-EuroAmerican Journal of Sport Sciences 3, no. 1-2 (November 1, 2014): 33–40. Accessed October 19, 2026. https://revistas.um.es/sportk/article/view/221991.