Watson, George
Macmillan, 1991
Buku Teks SO
edited by Terry Gourvish
Macmillan Education, 1991
Buku Teks SO
Thody, Philip
Routledge, 2000
Buku Teks
edited with an introduction by Richard M. Dalfiume
Quadrangle Books, 1969
Buku Teks SO
Cribb, Robert Bridson
Longman, 1995
Buku Teks SO