Gaya APA
principle and methods of social .... (0000).
~:
~.
Gaya Chicago
principle and methods of social ....
~.
~:
~,
0000.
Buku.
Gaya MLA
principle and methods of social ....
~.
~:
~,
0000.
Buku.
Gaya Turabian
principle and methods of social ....
~:
~,
0000.
Buku.