edited by Brian Harvey, Henk van Luijk and Horst Steinmann
Prentice-Hall, 1994
Buku Teks
Oxford University Press, 1993
Buku Teks
Toth, A. G., author
Clarendon Press, 1990
Buku Referensi
edited by Robert M. Maclean
[Publisher not identified], [Date of publication not identified]
Buku Teks
STBS , 1991
Buku Teks