Gaya APA

Ramli, . et al (2013). Ferritin Level Decreased between the Second and Third Trimester of Pregnancy (Kadar Feritin Menurun pada Kehamilan Trimester II dan III) . Jakarta: Indonesian Society of Obstetetrict and Gynecology.

Gaya MLA

Ramli, . et al. "Ferritin Level Decreased between the Second and Third Trimester of Pregnancy (Kadar Feritin Menurun pada Kehamilan Trimester II dan III)". Jakarta: Indonesian Society of Obstetetrict and Gynecology, 2013. Text.