edited by Joseph S. Wholey
Jossey-Bass Publishers, 1994
Buku Teks
edited by Joseph S. Wholey, Harry P. Hatry and Kathryn E. Newcomer
Jossey-Bass, 1994
Buku Referensi
edited by Albert N. Link, Nicholas S. Vonortas
Edward Elgar, 2013
Buku Teks
Smith, Michael J., author
Oxford University Press, 2010
Buku Teks
Issel, L. Michele, author
Jones & Bartlett Learning, 2014
Buku Teks