6 1 30 Cuevas Romo, Ana Primary Author Hernández Sampieri, Roberto, Primary Author Méndez Valencia, Sergio, Primary Author Mendoza Torres, Chistian Paulina Primary Author mixed material 9786071513953 México McGraw-Hill Interamericana 2017 Fundamentos de investigación cover_fundamentos-de-investigaci-n-20260226115214.jpg Hernández Sampieri, Roberto Primary Author Fernández Collado, Carlos Primary Author Méndez Valencia, Sergio, colab. Additional Author Mendoza Torres, Christian Paulina, colab. Additional Author Baptista Lucio, María del Pilar Primary Author mixed material 9781456223960 México McGraw-Hill Interamericana c2014 MI_-_SAMPIERI.jpeg.jpeg Hernández Sampieri, Roberto Primary Author Fernández Collado, Carlos Primary Author Baptista Lucio, María del Pilar Primary Author mixed material 9786071502919 México McGraw-Hill Interamericana c2010 metodologia_in.jpeg.jpeg Hernández Sampieri, Roberto Primary Author Fernández Collado, Carlos Primary Author Méndez Valencia, Sergio, colab. Contributor Mendoza Torres, Christian Paulina, colab. Contributor Baptista Lucio, María del Pilar Primary Author mixed material 9781456223960 México McGraw-Hill c2014 laleo_9781456223960-metodologia-de-la-investigacion.jpg.jpg las rutas cuantitativa, cualitativa y mixta Hernández Sampieri, Roberto Primary Author Mendoza Torres, Christian Paulina, Primary Author mixed material 9781456260965 México c2018 Metodología de la investigación : las rutas cuantitativas, cualitativas y mixta descarga_%2861%29.jpg.jpg Hernández Sampieri, Roberto Primary Author Mendoza Torres, Christian Paulina Primary Author Méndez Valencia, Sergio Primary Author Cuevas Romo, Ana Primary Author mixed material 9781456269654 México McGraw-Hill c2019 978145626965.gif.gif