1
by Kramer Sr., A.L.N.
Published 1993
2
by Nelson, Andrew N.
Published 1999
3
4
Published 1979
5
by Choi Kim Yok
Published 1999
6
Published 1998
7
Published 2005
8
Published 2005
9
Published 2003
10
Published 2003
11
Published 2002
12
by Smyth, David
Published 2001
13
Published 1988
14
by Snell, Rupert
Published 2004
15
Published 2011
16
by Kyubyong Park
Published 2012
17
18
Published 2006
19
20