Dosochulpha Hanul, 2010
Buku Teks
edited by John K. Ryan
The Catholic University of America Press, 1963
Buku Teks
Russell, Bertrand, 1872-1970, author
George Allen and Unwin, 1957
Buku Teks
Benton, Ted
Routledge & Kegan Paul , 1977
Buku Teks
Russel, Bertrand, author
Routledge, 1948
Buku Teks