Bermúdez Díaz, Luis Armando, and Carlos Harvey Guerrero Saavedra. 2020. “Digital Educational Material for Learning Location Concepts in Preschool Children”. I+ T+ C- Research, Technology and Science - Unicomfacauca 1 (14). Popayán, CO:71-75. https://doi.org/10.57173/ritc.v1n14a9.