edited by Arlene J. Lowenstein, Lynn Foord-May, Jane C. Romano
Jones and Bartlett, 2009
Buku Teks
Russell, Robert D.
National Education Association, 1975
Buku Teks
Kimbrough, Vickie J.
Pearson, Prentice Hall, 2006
Buku Teks
Boissoneau, Robert
An Aspen Publ., 1980
Buku Teks
Greene, Walter H.
Waveland Press, 1984
Buku Teks