Cambridge University Press, 2014
eBooks
edited by John K. Ryan
The Catholic University of America Press, 1963
Buku Teks
Perry, Richard J., author
Prentice-Hall, 2003
Buku Teks
Delaney, Carol., author
Wiley Balckwell, 2017
Buku Teks
Cassirer, Ernst, author
Gramedia, 1987
Buku Teks