Gaya APA
World Journal of Obstetrics and Gynecology. (2013).
Beijing:
Salemba Empat.
Gaya Chicago
World Journal of Obstetrics and Gynecology.
Volume 4 no 1 Februari 2015.
Beijing:
Salemba Empat,
2013.
Jurnal Internasional.
Gaya MLA
World Journal of Obstetrics and Gynecology.
Volume 4 no 1 Februari 2015.
Beijing:
Salemba Empat,
2013.
Jurnal Internasional.
Gaya Turabian
World Journal of Obstetrics and Gynecology.
Beijing:
Salemba Empat,
2013.
Jurnal Internasional.