Berstein, Jeremy
Basic Books, 1982
Buku Teks
Steers, Richard M., compiler
McGraw-Hill , 1983
Buku Teks
Masson, VeNeta
Springer Publ ., 1981
Buku Teks
edited by David N. Balaam and Michael J. Carey
Allanheld, Osmun, 1981
Buku Teks
University of Pittsburgh Press, 1980
Buku Teks