Gaya APA
Creswell, J, W. (2002).
Research design : qualitative & quantitative approaches (pendekatan kualitatif & kuantitatif) .
Jakarta:
KIK Press.
Gaya MLA
Creswell, John, W..
"Research design : qualitative & quantitative approaches (pendekatan kualitatif & kuantitatif)".
Jakarta:
KIK Press,
2002.
Text.