Gaya APA

FRIIS, R, H., SELLERS, T, A. (2014). Epidemiology for public health practice (5th ed.). Burlingtong: Jones & Bartlett Learning.

Gaya MLA

FRIIS, Robert, H.., SELLERS, Thomas, A.. "Epidemiology for public health practice". 5th ed. Burlingtong: Jones & Bartlett Learning, 2014. Buku.