Gaya APA

Nasution, ., Garnham, A. (2006,2007,2019). Metode Research ( Penelitian Ilmiah ) (Ed.1,-). Jakarta: Bumi Aksara.

Gaya MLA

Nasution, ., Garnham, Alan. "Metode Research ( Penelitian Ilmiah )". Ed.1,- Jakarta: Bumi Aksara, 2006,2007,2019. Text.