Arps, Bernard, author
University of London, 1992
Buku Klasik
Thomas, Pradip Ninan (ed.) (change); Servaes, Servaes, Jan
Sage Publications, 2006
Buku Teks
edited by Stephen Billett
Springer, 2010
Buku Teks
Madan, T. N., author
Sage, 2011
Buku Teks
Rieber, Robert W., author
[Springer, ], 2012
eBooks