Graham, Bruce Desmond
Australian National University Press, 1966
Buku Teks
Norden, Mary
Conran Octopus Limited, 2000
Buku Referensi
Waller, Robert James
Warner Books, 1992
Buku Teks
Tromp, Heimerick, compiler
Waanders, 1997
Buku Teks SO
Idea Books, 1997
Buku Referensi