Howells, Kerry
Sense, 2012
eBooks
Thompson, Denise, author
Sage, 2001
Buku Teks
edited by Pierpaolo Mudu and Sutapa Chattopadhyay
Taylor and Francis Group, 2017
Buku Teks
Sherman, Howard J., author
Harper & Row, 1979
Buku Teks
Sherman, Howard J., author
Harper and Row, 1989
Buku Teks