DeVrye, Catherine
Gramedia Pustaka Utama, 1997
Buku Teks
Evenson, Renee, 1951-, author
Amacom, 2012
Buku Teks
Oka A. Yoeti, author
Pradnya Paramita, 2005
Buku Teks
Cheverton, Peter, author
Elex Media Komputindo, 2003
Buku Teks
Armistead, Colin G.
Elex Media Komputindo, 1996
Buku Teks