Clarendon Press, 1983
Buku Teks
National Institute of Ecology and International Scientific, 1982
Buku Teks
Begon, Michael, author
Blackwell Science, 1996
Buku Teks
X Ben Wu
Kendall, 2002
Buku Teks
Brewer, Richard, author
Saunders College Publishing, 1994
Buku Teks