APA Style

Marsis, I, O. (2012). Screening of Down Syndrome in Early Pregnancy Using Non-Interventional Ultrasonography (Vol. 62 No. 5). Jakarta: Ikatan Dokter Indonesia.

MLA Style

Marsis, Ichsan, Oetama. "Screening of Down Syndrome in Early Pregnancy Using Non-Interventional Ultrasonography". Vol. 62 No. 5 Jakarta: Ikatan Dokter Indonesia, 2012. Jurnal.