Gaya APA

Ani, N. (2014). Research Design : Quantitative, Qualitative, and Mixed Methods Approaches (Ed. 4). Watertown, Massachusetts: Sage ublication.

Gaya MLA

Ani, Nur. "Research Design : Quantitative, Qualitative, and Mixed Methods Approaches". Ed. 4 Watertown, Massachusetts: Sage ublication, 2014. Text.