Feduccia, Alan, author
W.W. Norton, 1975
Buku Teks
King, Gillian M.
Blackwell Scientific Pub., 1982
Buku Referensi
editors, Norman K. Wessells, Elizabeth M. Center
William Kaufmann, 1973
Buku Teks
Rugh, Roberts, author
Burgess, 1961
Buku Teks
Pandey, B.N., author
Tata McGraw-Hill, 2012
Buku Teks