1
by Coffin, B. D.
Published 2007
2
by Crouse, William Harry, 1907-
Published 1993
3
by Chapman, Elwood N.
Published 1986
4
by Hughes, James G.
Published 1997
5
by Grammer, George, 1905-
Published 1972
6
Published 2007
7
by Poh, Liong Yong.
Published 1988