Rees, Leslie, 1905-2000
Angus and Robertson, 1953
Buku Teks SO
Rees, Leslie, 1905-2000
Angus & Robertson, 1973
Buku Teks SO
Coldewey, John C.
Prentice-Hall, 2001
Buku Referensi
edited by Jennifer Palmer
Adelaide University Union Press, 1979
Buku Teks SO
Bruce Elder
Buku Teks