Gaya APA
III, A, A, &, G, R, S. (2020).
Essential of Epidemiology in Public Health .
America:
Jones & Bartlett Learning.
Gaya MLA
III, Ann, Aschengrau, &, George, R., Seage.
"Essential of Epidemiology in Public Health".
America:
Jones & Bartlett Learning,
2020.
Ebook.