Paravina, Rade D.
Elsevier Mosby, 2004
Multimedia
Manocchia, Pat, author
Hinkler Books, 2011
Buku Referensi
Anggleton, Peter, Chase, Elaine, Rivers, Kim, Toft, Marlyn, Tyrer, Paul, Warwick, Ian, Whitty, Geoff
Churchill Livingstone , 1994
Buku Referensi
Aggleton, Peter
London : Churchill Livingstone Inc., 1994,
Buku Referensi
Hart, Lois B, author
AMACOM, 2005
Buku Teks