Terranova, Tiziana, author
Pluto Press, 2005
Buku Teks
Elliot, Florence, author
Penguin Books, 1957
Buku Referensi
Hacker, Andrew
McGraw-Hill, 1973
Buku Teks
Crick, Bernard, author
Routledge & Kegan Paul, 1959
Buku Teks
Westview Press, 1997
Buku Teks