Macfadyen, A.
Animal ecology: aims and methods / by A. Macfadyen
Pitman Publishing Corporation, 1963
 Buku Teks
Boughey, Arthur S., author
Population and environmental biology / Arthur S. Boughey
Dickenson , 1967
 Buku Teks
Life counts : cataloguing life on earth
Gleich, Michael; Maxeiner, Dirk; Miersch, Michael; Nicolay, Fabian
Atlantic Monthly Press, 2002
 Buku Referensi
Usher, M.B.
Biological management and conservation; ecological theory, application and planning [by] M. B. Usher.
Chapman and Hall , 1973
 Buku Teks
Dynamics of large mammal populations
[edited by] Charles W. Fowler, Tim D. Smith
John Wiley and Sons, 1981
 Buku Teks