1
Published 1988
2
3
Published 1992
4
by Dutt
Published 1991
5
by Bhalla
Published 1992
6
by Chang, 1929-
Published 1988
7
Published 1989
8
by Tisdell
Published 1993
9
by White
Published 1993
10
by Drucker
Published 1997
11
Published 1990
12
by Fewsmith
Published 1994
13
14
by Hinton
Published 1991
15
by Powell
Published 1992
16
by Peebles
Published 1991