(3MLjI GdCeQ HGf dG hLg dEbGeI GdOYhi GdLfGFjI (B:s (3OQGSI ebGQfI (B/s - (3eMeO YHOGdMejO ecis ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI,s, 2000)
(3jTJed Ydi GQLGYGJ HHjdhLQGajI(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdbGfhf GdLfGFis; (3GdCeQ HCdGhLg dEbGeI GdOYhis