Humphrey, William
Alfred A. Knop, 1965
Buku Teks
Hailey, Elizabeth Forsythe, author
Deal Book, 1991
Buku Teks
Crawford, Max
University of Oklahoma Press, 1997
Buku Teks
Giffin, Emily, author
Ballantine Books, 2014
Buku Teks
McMurtry, Larry
Simon & Schuster, 1999
Buku Teks