Drake, Stillman
University of Toronto Press, 1999
Buku Teks
Capon, David Smith, author
John Wiley & Sons, 1999
Buku Teks
edited by I. Grattan-Guinness
Routledge, 1994
Buku Referensi
edited by John Cottingham
Blackwell, 2008
Buku Teks
Russell, Bertrand, 1872-1970, author
George Allen and Unwin, 1957
Buku Teks