G. S. Valdés León, M. Vidal-Sepúlveda y C. Olivares-Rodríguez, «Oral communicative competence in the training of engineers for the 21st century,» Centro Sur, 2022.
G. S. Valdés León, M. Vidal-Sepúlveda y C. Olivares-Rodríguez, «Oral communicative competence in the training of engineers for the 21st century,» Centro Sur, 2022.

Cristian Olivares Rodríguez