Roop, Robert S. de
St Martins Press, 1957
Buku Teks
McKim, William A., author
Prentice-Hall, 1991
Buku Teks
Grilly, David M., author
Pearson, 2012
Buku Teks
BNN, 2020
Buku Teks
Harvina Sawitri, author
Fakultas Kesehatan Masyarakat Universitas Indonesia, 2012
UI - Tesis (Open)