Gaya APA
World Journal of Obstetrics and Gynecology. (2013).
Beijing:
Liberty.
Gaya Chicago
World Journal of Obstetrics and Gynecology.
.
Beijing:
Liberty,
2013.
Jurnal Internasional.
Gaya MLA
World Journal of Obstetrics and Gynecology.
.
Beijing:
Liberty,
2013.
Jurnal Internasional.
Gaya Turabian
World Journal of Obstetrics and Gynecology.
Beijing:
Liberty,
2013.
Jurnal Internasional.