Gaya APA

Creswell, J, W. (2007). Qualitative inquiry and research design : choosing among five approaches second edition (2nd Edition). Thousand Oaks, California: SAGE Publications.

Gaya MLA

Creswell, John, W.. "Qualitative inquiry and research design : choosing among five approaches second edition". 2nd Edition Thousand Oaks, California: SAGE Publications, 2007. Text.