Roff, Derek A.
Chapman & Hall, 1992
Buku Teks
Lock, Robert Heath, author
Cambridge University Press, 2013
Buku Teks
Mayr, Ernst, author
Belknap Press, 1963
Buku Teks
Starr, Cecie, author
Thomson, 2004
Buku Teks
Smith, John Maynard, author
New Haven Yale University, 1999
Buku Teks