Pynes, Joan
Jossey-Bass, 2011
Buku Teks
World Health Organization, 1978
Buku Teks
edited by S. Robert Hernandez, Stephen J.O.Connor
Delmar/Cengage Learning, 2010
Buku Teks
McConnell, Charles R.
Jones & Bartlett Learning, 2013
Buku Referensi
Clements, John, 1946-
John Wiley & Sons, 1994
Buku Teks