Gaya APA

Koswara3, A, M, E, N, N, T. et al (2002). Epidemiological Studies : a Practical Guide . : Cambridge.

Gaya MLA

Koswara3, Ana, Mariana1,, Eka, Noneng, Nawangsih2,, Teja. et al. "Epidemiological Studies : a Practical Guide". : Cambridge, 2002. Text.