edited by Duddley Bailey
W.W. Norton, 1965
Buku Teks
Sheikh Muhammad Ashraf , 1944
Buku Teks
Arndt, H. W. (Heinz Wolfgang), 1915-2002, author
Australian NAtional University Press, 1972
Buku Teks
Thoreau, Henry David, 1817-1862, author
The Library of America, 2001
Buku Teks
Huxley, Julian, compiler
London Penguin 1937
Buku Teks