APA Style

LEVENO, K, J. (2003). Obstetri William Panduan Ringkas-2009 ( PDFDrive ) (1) . JAKARTA: EGC.

MLA Style

LEVENO, KENNETH, J. "Obstetri William Panduan Ringkas-2009 ( PDFDrive ) (1)". JAKARTA: EGC, 2003. PERAWAT.