edited by S. Robert Hernandez, Stephen J.O.Connor
Delmar/Cengage Learning, 2010
Buku Teks
Pynes, Joan
Jossey-Bass, 2013
Buku Teks
Duncan, W. Jack
Blackwell, 1995
Buku Teks
Duncan, W. Jack
Blackwell, 1999
Buku Teks
Ginter, Peter M.
Jossey-Bass, 2014
Buku Teks