Henslin, James M., author
McGraw-Hill, 1983
Buku Teks
Palen, J. John, author
McGraw-Hill, 1979
Buku Teks
Scarpitti, Frank R., author
Holt, Rinehart and Winston, 1974
Buku Teks
Etzioni, Amitai, author
Prentice-Hall, 1976
Buku Teks
Kornblum, William, author
Prentice-Hall, 1992
Buku Teks SO