Aldred, Cyril
Thames and Hudson, 1965
Buku Teks
Scott, J. D.
Eyre and Spottiswoode, 1954
Buku Teks
Gillispie, Charles Coulston, author
Princeton University Press, 1980
Buku Teks
Maisels, Charles Keith
Routledge, 1999
Buku Teks
Carey, P. B. R., author
KITL Press, 2007
Buku Teks