Gaya APA

Creswell, J, W., Poth, C, N. (2018). Qualitative Inquiry and Research Design: Choosing Among Five Approaches (4). California: Sage.

Gaya MLA

Creswell, John, W.., Poth, Cheryl, N.. "Qualitative Inquiry and Research Design: Choosing Among Five Approaches". 4 California: Sage, 2018. Text.