edited by David Ingram
Blackwell , 2002
Buku Teks
IPSA; AISP, 2009
Multimedia
Carlson, Lucile, author
Prentice-Hall, 1960
Buku Teks
Ermaya Suradinata, Alex Dinuth
Paradigma Cipta Yastigama, 2001
Buku Teks
edited by Geatoid O`Tuathail and Simon Dalby
Routledge, 1998
Buku Teks