Gaya APA

Soehartono, . (2020). Majalah Obstetri dan Ginekologi (Vol 28 No 1 April). Surabaya: Department of Obstetrics & Gynecology, Airlangga University.

Gaya MLA

Soehartono, . "Majalah Obstetri dan Ginekologi". Vol 28 No 1 April Surabaya: Department of Obstetrics & Gynecology, Airlangga University, 2020. Text.