Gaya APA

Metode research. (1). : viii+156.

Gaya Chicago

Metode research. Bumi aksara. : viii+156, 1. Nasution S.

Gaya MLA

Metode research. Bumi aksara. : viii+156, 1. Nasution S.

Gaya Turabian

Metode research. : viii+156, 1. Nasution S.