Gaya APA

Nasution, S. (2006). Metode Research : Penelitian Ilmiah Usul Tesis, Desain Penelitian, Hipotesis, Validitas, Sampling, Populasi, Observasi, Wawancara, Angket (cet.8.ed.1). Jakarta: Bumi Aksara.

Gaya MLA

Nasution, S. "Metode Research : Penelitian Ilmiah Usul Tesis, Desain Penelitian, Hipotesis, Validitas, Sampling, Populasi, Observasi, Wawancara, Angket". cet.8.ed.1 Jakarta: Bumi Aksara, 2006. Text.