Gaya APA
Creswell, J, W. (2007).
Qualitative Inquiry & Research Deisgn: Choosing Among Five Approaches (2nd ed.).
America:
Sage Publications.
Gaya MLA
Creswell, John, W..
"Qualitative Inquiry & Research Deisgn: Choosing Among Five Approaches".
2nd ed.
America:
Sage Publications,
2007.
Texts.