Rodríguez Hernández BA, Bautista Ortiz MF, Servín Calvillo OO. The continuous training of multigrade teachers: An approach to the Veracruz context. IE REDIECH [Internet]. 2021Dec.20 [cited 2024May19];12:e1194. Available from: https://rediech.org/ojs/2017/index.php/ie_rie_rediech/article/view/1194