Howard, Ebenezer
Faber and Faber, 1946
Buku Teks
Geddes, Patrick
Williams & Norgate, 1949
Buku Teks
Inkpen, Gary
Longman , 1998
Buku Teks
edited by Josef Gugler
Cambridge University Press, 2004
Buku Teks
Hamblin, Dora Jane, author
Time-Life International, 1975
Buku Teks