Newell, Sydney B., author
Harper & Row, 1982
Buku Teks
Givone, Donald D., author
McGraw-Hill, 1980
Buku Teks
Gilmore, Charles M., author
McGraw-Hill, 1981
Buku Teks
Osborne, Adam, author
McGraw-Hill, 1983
Buku Teks
Leventhal, Lance A., author
Prentice-Hall, 1987
Buku Teks