Gaya APA

sofian, A., nirmala, W, K. (2011). rustam mochtar sinopsis obstetetri; obstetri operatif, obstetri sosial (ed.3). jakarta: EGC.

Gaya MLA

sofian, Amru., nirmala, Windriya, Kerta. "rustam mochtar sinopsis obstetetri; obstetri operatif, obstetri sosial". ed.3 jakarta: EGC, 2011. Text.