APA Style

Sastra, C. et al (2013). Higher Cortisol Level Would Increase the Risk of Spontaneous Abortion (Kadar Kortisol yang lebih Tinggi Meningkatkan Risiko Abortus Spontan) . Jakarta: Indonesian Society of Obstetetrict and Gynecology.

MLA Style

Sastra, Christian. et al. "Higher Cortisol Level Would Increase the Risk of Spontaneous Abortion (Kadar Kortisol yang lebih Tinggi Meningkatkan Risiko Abortus Spontan)". Jakarta: Indonesian Society of Obstetetrict and Gynecology, 2013. Text.