Baumeister
2009
Buku Teks
Hume, David, author
Oxford University Press, 2000
Buku Teks
Redfield, Robert, author
University of Chicago Press , 1962
Buku Teks
Stevenson, Leslie, author
Oxford University Press, 1974
Buku Teks
Sayers, Sean, author
Routledge , 1998
Buku Teks