Research design qualitative, quantitative, and mixed methods approaches

Dades bibliogràfiques
Autor principal:	Creswell, John W. (Autor)
Format:	Llibre
Idioma:	anglès
Publicat:	Thousand Oaks, California Sage Publications ©2003.
Edició:	2nd ed.
Matèries:	Social sciences > Research > Methodology. Social sciences > Statistical methods.