edited by Kenneth Lee, Anne Mills
Oxford University Press, 1984
Buku Teks
Rapoport, John, author
An Aspen Publication, 1982
Buku Teks
Clewer, Ann, author
Pearson Education, 1998
Buku Teks
Mooney, Gavin H., author
Prentice-Hall, 1992
Buku Teks
Rice, Thomas H., author
Health Administration Press, 2003
Buku Teks