Buku (pinjaman 1 minggu) 614 UNW i An Introductory study guide to public health and epidemiology Unwin, Nigel Carr, Susan M. Leeson, Joyce Public health -- Examination questions Public health -- nurses instruction Epidemiology -- Examination questions Open University Press 1997 https://lib.fkm.ui.ac.id:443/detail?id=5236