Goodban, William T., author
McGraw-Hill, 1979
Buku Teks
White, Edward T., author
Florida University, [19?-]
Buku Teks
Levinson, Edward D., author
McGraw-Hill, 1983
Buku Teks
Goodban, William T., author
McGraw-Hill, 1979
Buku Teks
Cowan, James, author
McGraw-Hill, 2000
Buku Teks