Gaya APA
Nasution, Irwan. Dkk. (2002).
Metode Penelitian (Materi Kuliah) .
Medan:
IAIN.
Gaya Chicago
Nasution, Irwan. Dkk.
Metode Penelitian (Materi Kuliah).
Medan:
IAIN,
2002.
Text.
Gaya MLA
Nasution, Irwan. Dkk.
Metode Penelitian (Materi Kuliah).
Medan:
IAIN,
2002.
Text.
Gaya Turabian
Nasution, Irwan. Dkk.
Metode Penelitian (Materi Kuliah).
Medan:
IAIN,
2002.
Print.