Hyman, David N., author
Richard D. Irwin, 1971
Buku Teks
The Unesco Press, 1975
Buku Teks
Fraser, Dean
Burgess Publishing, 1979
Buku Teks
by T. Elliot Weier ... [et al.]
John Wiley & Sons, 1982
Buku Teks
Wrensch, Dana L., author
Kendall/Hunt, 1992
Buku Teks