Hernández Sampieri, R., & Mendoza Torres, C. P. (2018). Metodología de la investigación: Las rutas cuantitativa, cualitativa y mixta (7th ed.). McGraw-Hill Interamericana.
"A methodology is not a cage. It is a map. You were not wrong; you were just early. Now go to page 304." Metodologia De La Investigacion Sampieri 7ma Edicion Pdf