Palen, J. John, author
McGraw-Hill, 1979
Buku Teks
edited by Paul B. Horton and Gerald R. Leslie
Prentice-Hall, 1975
Buku Teks
Kornblum, William, author
Prentice-Hall, 1992
Buku Teks
edited by Earl Rubington, Martin S. Weinberg
Oxford University Press, 1981
Buku Teks
edited by Earl Rubington and Martin S. Weinberg
Oxford University Press, 1995
Buku Teks