Katzan, Harry, Jr., author
Auerbach, 1972
Buku Teks
Conway, Richard, author
Winthrop Publishers, 1973
Buku Teks
Hughes, Joan K., author
John Wiley & Sons, 1979
Buku Teks
Davidson, Melvin, author
Hougtton-Mifflin, 1973
Buku Teks
Tucker, Allen B., author
McGraw-Hill, 1986
Buku Teks