Vega Villarreal, S., Gandarilla Baldenegro, N.J. and Núñez Soto, A.R. 2021. An approach to the state of knowledge in research area about educational research. RECIE. Revista Electrónica Científica de Investigación Educativa. 5, 2 (Dec. 2021), 251-262. DOI:https://doi.org/10.33010/recie.v5i2.1292.