Brightman, Edgar Sheffield
Holt, Rinehart and Winston, 1961
Buku Teks SO
Graham, Gordon
Routledge, 1997
Buku Teks SO
Luce, J.V.
Thames and Hudson, 1994
Buku Teks SO
Stanford, Michael
Blackwell Publishers, 1998
Buku Teks SO
New, Christopher
Routledge, 1999
Buku Teks SO