Isherwood, Millicent M.
Chambers, 1986
Buku Teks
Stanford, D
London Longmans 1954
Buku Teks
Henderson, Philip
Longmans, L1956
Buku Teks
Bingham, Neil
National Book Network, 1996
Buku Teks
edited by Havelock Ellis with an introduction by J.A. Symonds
Benn, 1948
Buku Teks