Welty, James R., author
John Wiley & Sons, 1984
Buku Teks
Masters, William H.
Harper Perennial 1994, 1994
Buku Teks
Dull, Charles E.
Holt, Rinehart and winston, 1963
Buku Teks
Gustafson, Charles H.
West Publishing Co., 1997
Buku Teks
Eicholz, Robert E., author
Addison-Wesley, 1965
Buku Teks