Carrillo-Benítez, Danny Daniel, et al. “Effects of a Programme of Recreational-Pedagogical Activities on Motor Coordination in Schoolchildren from 6 to 9 Years of Age at the Mariano Ospina Rodríguez Educational Institution in the City of Cúcuta”. Mundo FESC Journal, vol. 11, no. S2, Sept. 2021, pp. 239-4, https://www.fesc.edu.co/Revistas/OJS/index.php/mundofesc/article/view/972.