Gaya APA
Creswell, John W.. (2009).
Research Design : Pendekatan Kualitatif, Kuantitatif, Dan Mixed .
Yogyakarta:
Pustaka Belajar.
Gaya Chicago
Creswell, John W..
Research Design : Pendekatan Kualitatif, Kuantitatif, Dan Mixed.
Yogyakarta:
Pustaka Belajar,
2009.
Text.
Gaya MLA
Creswell, John W..
Research Design : Pendekatan Kualitatif, Kuantitatif, Dan Mixed.
Yogyakarta:
Pustaka Belajar,
2009.
Text.
Gaya Turabian
Creswell, John W..
Research Design : Pendekatan Kualitatif, Kuantitatif, Dan Mixed.
Yogyakarta:
Pustaka Belajar,
2009.
Print.