Brant, Irving
Bobbs-Merrill Company,Inc., 1953
Buku Teks
Graham, Bruce Desmond
Australian National University Press, 1966
Buku Teks
Norden, Mary
Conran Octopus Limited, 2000
Buku Referensi
Tulloch, Mitch
Currency Press, 1986
Buku Teks
Tromp, Heimerick, compiler
Waanders, 1997
Buku Teks SO