edited by Betty P. Mathews
Third Party Publishing, 1982
Buku Teks
Jossey-Bass , 2004
Buku Teks
edited by Karen Glanz, Barbara K. Rimer, K. Viswanath
Jossey-Bass, 2008
Buku Teks
Russell, Robert D.
National Education Association, 1975
Buku Teks
DeBiase, Christina B., author
Lea & Febiger, 1991
Buku Teks