2007
Multimedia
Nicholls, Audrey, author
George Allen and Unwin, 1972
Buku Teks
Fortin, Jane, author
Cambridge University, 2005
Buku Teks
Evans, G. Edward, 1937-, author
Libraries Unlimited , 2005
Buku Teks
Corbin, John (John Boyd), author
Phoenix The Oryx Press, 1981
Buku Teks