X Ben Wu
Kendall, 2002
Buku Teks
Brewer, Richard, author
Saunders College Publishing, 1994
Buku Teks
Ehrlich, Paul R., author
Macmillan, 1987
Buku Teks
Colinvaux, Paul A., author
John Wiley & Sons, 1973
Buku Teks
Kormondy, Edward J.
Prentice-Hall, 1976
Buku Teks