Gaya APA

Soehartono, . (2019). Majalah Obstetri dan Ginekologi (Vol 27 No 1 April). Surabaya: Department of Obstetrics & Gynecology, Airlangga University.

Gaya MLA

Soehartono, . "Majalah Obstetri dan Ginekologi". Vol 27 No 1 April Surabaya: Department of Obstetrics & Gynecology, Airlangga University, 2019. Text.