Campbell, B. M. S..
Cambridge University Press , 2016
Buku Teks
Pernoud, Regine
Dennis Dobson, 1950
Buku Teks
Ashton, Gail
Routledge, 2000
Buku Teks
Heale, Martin
Oxford University Press, 2016
eBooks
Doe, Norman
Cambridge University Press, 1990
Buku Teks