Sieh, Kerry
W.H. Freeman and Company , 1999
Buku Teks
Bullard, Fred M
University of Queenland Press, 1977
Buku Teks
Prager, Ellen J.
McGraw-Hill, 2000
Buku Teks
Sutherland, Lin, author
University of New South Wales Press, 1995
Buku Referensi
introduction by Bruce A. Bolt
W.H. Freeman, 1980
Buku Teks