Ortiz Flores, F. A. ., J. L. . Llanos Castilla, and D. K. . Gallo Castro. “The Plastic Expression Improves the Cognitive Capacity of Learning in Mathematics: Evidence of an Experimental Program in Initial Education”. REVISTA EDUSER, vol. 8, no. 1, Oct. 2021, pp. 1-8, doi:10.18050/eduser.v8i1.926.