editor, R.W. Sims
British Museum (Natural History), 1980
Buku Referensi
editor, David Hollis
British Museum (Natural History), 1980
Buku Referensi
Wilson, Billie Ann, author
Prentice-Hall, 2003
Buku Teks
Kokusai Bunka Shinkokai, 1964
Buku Referensi
Pandey, B.N., author
Tata McGraw-Hill, 2012
Buku Teks