Gaya APA
Metodologi research 1. (1991).
Jakata:
[s.n.].
Gaya Chicago
Metodologi research 1.
ed. 1, cet. 23.
Jakata:
[s.n.],
1991.
Text.
Gaya MLA
Metodologi research 1.
ed. 1, cet. 23.
Jakata:
[s.n.],
1991.
Text.
Gaya Turabian
Metodologi research 1.
Jakata:
[s.n.],
1991.
Print.