Danny P. Wallace; Connie Van Fleet, editor
Libraries Unlimited, Inc., 2001
Buku Teks
edited by Stephen E. Finn, Constance T. Fischer, and Leonard Handler
John Wiley & Sons, 2012
Buku Teks
Seligman, Eustace, author
New York University Press, 1956.
Buku Teks
Japan Times, 2003
Buku Teks
Hausladen, Gerhard, author
Birkhäuser , 2007
Buku Teks