61
by Arney,
Published 1987
62
63
by Kreutz,
64
by Lewis,
Published 2001
65
Published 2005
66
by Erlhoff,
Published 2005
67
Published 2006
68
69
by Dabner,
Published 2003
70
Published 2005
71
by Eldridge,
Published 2006
72
Published 2005
73
74
Published 2007
75
Published 2005
76
by Klimchuk,
Published 2006
77
Published 2005
78
by Lefteri,
Published 2006
79
Published 2004
80
by Norwani Mohd Nawawi
Published 2002