edited by Havelock Ellis with an introduction by J.A. Symonds
Benn, 1948
Buku Teks
Henderson, Philip
Longmans, L1956
Buku Teks
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1964
UI - Skripsi (Membership)
Brennan, Christopher
Angus & Robertson, 1966
Buku Teks
Geckle, George L.
MacMillan Education, 1988
Buku Teks