Moore, Joan W
Prentice-Hall, 1982
Buku Teks
Merton, Robert K., author
Harcourt Brace Jovanovich, 1971
Buku Teks
Morales, Armando, author
Allyn and Bacon, 1983
Buku Teks
Kornblum, William, author
Prentice-Hall, 1992
Buku Teks
Horton, Paul B., author
Appleton Century Crofts, 1965
Buku Teks