Peters, Robert Henry
Cambridge University Press, 1983
Buku Teks
Owen-Smith, R. Norman, author
Cambridge University Press, 1988
Buku Teks
Schmidt-Nielsen, Knut
Cambridge University Press, 1989
Buku Teks
Allee, W.C., author
John Wiley & Sons, 1963
Buku Teks
Southwood, T.R.E.
Chapman and Hall , 1968
Buku Teks