edited by Arlene J. Lowenstein, Lynn Foord-May, Jane C. Romano
Jones and Bartlett, 2009
Buku Teks SO
Russell, Robert D.
National Education Association, 1975
Buku Teks
editor, Spyros Doxiadis; editorial committee, Alastair Campbell V....[et al.]
John Wiley & Sons, 1990
Buku Teks SO
Kimbrough, Vickie J.
Pearson/Prentice-Hall, 2006
Buku Teks SO
Boissoneau, Robert
Aspen Publishing, 1980
Buku Teks SO