Gaya APA

Creswell, J, W, C, &, D, J. (2023). Research Design: Qualitative, Quantitative, and Mixed Methods Approaches (Ed. 6). Califormia, Amerika Serikat: SAGE Publishing.

Gaya MLA

Creswell, John, W., Creswell, &, David, J.. "Research Design: Qualitative, Quantitative, and Mixed Methods Approaches". Ed. 6 Califormia, Amerika Serikat: SAGE Publishing, 2023. book.