Carl C. Taylor ... [and others]
Orient Longmans, 1965
Buku Teks
Chandra, Nirmal Kumar
Oxford University Press , 1988
Buku Teks
Mill, J.S.
Penguin Books, 1987
Buku Teks
Santayana, George, author
Columbia University Press, 1995
Buku Teks
Camus, Albert, 1913-1960, author
Vintage Books, 1955
Buku Teks