[1]
Perlaza Díaz, C.P. and Henao Ramírez, V.M. 2018. Class protocol as a guiding activity in teaching at the second grade of elementary school. Ciencias Sociales y Educación. 6, 11 (Feb. 2018), 71–92. DOI:https://doi.org/10.22395/csye.v6n11a4.