Gaya APA
Metode penelitian. (2014).
Bogor:
Ghalia Indonesia.
Gaya Chicago
Metode penelitian.
Cet.10.
Bogor:
Ghalia Indonesia,
2014.
.
Gaya MLA
Metode penelitian.
Cet.10.
Bogor:
Ghalia Indonesia,
2014.
.
Gaya Turabian
Metode penelitian.
Bogor:
Ghalia Indonesia,
2014.
.