(3GdMeGjI GdLfGFjI dMb GdWad aj GdMjGI Hjf GdbGfhf GdhVYj hGdTQjYI GdESdGejI (B:s (3OQGSI ebGQfI(B/s - (3gdGdj YHO Gddg CMeO(B.s ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI ,s, 1989)
(3jTJed Ydi GQLGYGJ HHdjhLQGajIs
Keywords: (3GdMeGjI GdLfGFjIs; (3GdTQjYI GdESdGejIs