Evans, B. Ifor
Penguin Books, 1948
Buku Teks SO
edited by J.M. Morrell
Penguin Books, 1950
Buku Teks SO
edited by Russell A. Fraser and Norman Rabkin
Macmillan, 1976
Buku Teks SO
Rossiter, A.P. (Arthur Percival), 1957-
Hutchinson's University Library, 1950
Buku Teks SO
edited by Christopher Ricks
Penguin Books, 1993
Buku Teks SO