Allen & Unwin, 1986
Buku Teks
Crisp, L. F. (Leslie Finlay), author
Yale University Press, 1949
Buku Teks
Angus and Robertson, 1961
Buku Teks
Crisp, L. F. (Leslie Finlay), author
Longman Chesire, 1965
Buku Teks
Norris, R.
Melbourne University Press, 1975
Buku Teks