1
by Tham, Seong Chee
Published 1977
2
by Laswell, Harold
Published 1965
3
by Poole, Steven, 1972-
Published 2006
4
by Keane, Webb, 1955-
Published 1997
5
by Nandy, Milon
Published 1995
6
by Hurford, James R.
Published 2008