Rifkin, Bernard, author
McGraw-Hill, 1979
Buku Teks
Clements, Alan, author
McGraw-Hill, 1991
Buku Referensi
Lewart, Cass R., author
Prentice-Hall, 1982
Buku Teks
edited by Sandy Dolnick
American Library Association , 1990
Buku Teks
edited by James G. Snider and Charles E. Osgood
Aldine Publishing, 1977
Buku Teks