Gil, I. (2019). Gramática y ortografia básicas de la lengua española . Real Academia Española .

Swartz, R. J. (2010). Thinking-based learning : promoting quality student achievement in the 21st century. Teachers College Press. 

This book provides accessible educational practices that teachers can use to infuse skillful thinking into standards-based content instruction in any subject area or grade level.

Brown, H. D. (2015). Teaching by principles: An interactive approach to language pedagogy. Pearson Education. 

Brown, H. D., & Abeywickrama, P. (2019). Language assessment: principles and classroom practices. Pearson Education.