Hitti, Philip K. (Philip Khuri), 1886-1978, author
MacMillan, 1974
Buku Teks
Russell, Bertrand, 1872-1970, author
George Allen and Unwin, 1957
Buku Teks
Russel, Bertrand, author
Routledge, 1948
Buku Teks
Arkell, A.J., author
University of London Press, 1961
Buku Teks
Clark, C.M.H. (Charles Manning Hope), 1915-1991, author
Melbourne University Press, 1981
Buku Teks