Salazar Cruz, Pamela, and Judith Jiménez Díaz. “Differences in the Perceived Motor Competence of Children According to the Geographical Region”. Sportis. Scientific Technical Journal of School Sport, Physical Education and Psychomotricity, vol. 6, no. 2, Apr. 2020, pp. 246-65, doi:10.17979/sportis.2020.6.2.4997.