Gaya APA

Creswell, J, W., Poth, C, N. (2018). Qualitative Inquiry Research Design : Choosing Among Five Approaches FOURTH EDITION . Inggris: SAGE.

Gaya MLA

Creswell, John, W., Poth, Cheryl, N. "Qualitative Inquiry Research Design : Choosing Among Five Approaches FOURTH EDITION". Inggris: SAGE, 2018. Text.