1
Published 1977
2
3
Published 1999
4
by Fawcett, J. E. S, 1913-
Published 1981
5
Published 1993
6
Published 2005
7
by Bautista, Germelino M.
Published 1994
8
Published 1987
9
Published 1998
10
11
Published 1991
12
Published 1999
13
14
Published 2005
15
by Rees, Judith A, 1944-
Published 1990
16
by Vincent, Jeffrey R.
Published 2005
17
by Gangstad, Edward O.
Published 1990
18
Published 1991
19
by Omara-Ojungu, Peter H, 1949-
Published 1992
20
Published 1993