Krebs, Charles J., author
Ecological methodology
Harper Collins, 1989
 Buku Teks
Allen, T.F.H., author
Hierarchy : perspectives for ecological complexity
University of Chicago Press, 1988
 Buku Teks
Algae as ecological indicators
editod by L. Elliot Shubert
Acedemic Press, 1994
 Buku Teks
Man and landscape in Australia: towards an ecological vision
Australian Government Publishing Service, 1976
 Buku Teks
Allee, W.C., author
Ecological animal geography
John Wiley & Sons, 1963
 Buku Teks
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