Commercial Press , 1936
Buku Teks
Rodley, Lyn, author
Cambridge University Press, 1999
Buku Teks
edited by George Ansell, Markus Hattstein, Peter Delius
H.F. Ullmann, 2010
Buku Referensi
Yeomans, Richard, author
Garnet, 2006
Buku Teks
Michell, George, author
Thames & Hudson, 2000
Buku Teks