Booth, Anthony Robert
Springer International Publishing , 2017
eBooks
Hick, John H., 1922-2012
Prentice-Hall, 1990
Buku Teks
Pojman, Louis P.
English : 6th ed., International ed., 2012
Buku Teks
Clack, Brian R.
Polity Press, 2008
Buku Teks
edited by Andrew Eshleman
Blackwell, 2008
Buku Teks