edited by Henry Mayer
F.W. Chesire, 1966
Buku Teks
Theophanous, Andrew C.
Oxford University Press, 1980
Buku Teks
University of Queensland, 1968
Buku Teks
Crisp, L.F. (Leslie Finlay)
Longman, 1973
Buku Teks
Sawer, Geoffrey, 1910-1996
Melbourne University Press, 1973
Buku Teks