(3acQI GdbQjfI ai GdbGfhf GdOhdi GdYGe (B/ s - (3eUWai CMeO aDGO(B.s ((3GdbGgQI (B: s (3OGQ GdfgVI GdYQHjI, s, 1990)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B. s
Keywords: (3GdbGfhf GdOhdj GdYGe(B. s