APA Style

Northrup, R, S. et al (1989). Pedoman Terapi Medis (Manual of Medical Therapeutics) . Yogyakarta: Yayasan Essenta Medika.

MLA Style

Northrup, Robert, S.. et al. "Pedoman Terapi Medis (Manual of Medical Therapeutics)". Yogyakarta: Yayasan Essenta Medika, 1989. Text.