Gaya APA

Sofian, A. (2013). Sinopsis Obstetri , Obstetri Operatif, Obtetri Sosial Jilid 2 edisi3 (Cet. 2013). JAKARTA: EGC.

Gaya MLA

Sofian, Amru. "Sinopsis Obstetri , Obstetri Operatif, Obtetri Sosial Jilid 2 edisi3". Cet. 2013 JAKARTA: EGC, 2013. Text.