Sage Publications, Inc, 2006
Majalah, Jurnal, Buletin
Marmo, Marinella, author
Sage, 2016
Buku Teks
edited by Ursula Gorham, Natalie Greene Taylor, Paul T. Jaeger
Emerald, 2016
eBooks
Policy Press, 2008
Buku Teks
Tiantian Zheng.
Routledge, 2010
Buku Teks