Artikel Jurnal
Potter, Joan
Kensington Publishing, 2002
Buku Teks
Patton, Sharon F.
Oxford University Press, 1998
Buku Teks
Institute for the Studies of Language and Cultyres of Asia and Africa, 2002
Majalah, Jurnal, Buletin
Olson, Hope A., author
Libraries Unlimited, 2001
Buku Teks