Sen, Amartya, 1933-, author
Oxford University Press, 2002
Buku Teks
Brown, Harold I., author
Routledge, 1988
Buku Teks
Morrison, John, author
Penguin Books, 1985
Buku Teks
Newton-Smith, W
Routledge & Kegan Paul, 1981
Buku Teks
Olson, David R., author
Cambridge University Press, 2016
Buku Teks