(3GdbVGA GdOhdj GdLfGFj (B: s (3JGQjNg, JWHjbGJg, eTQhYGJg (B/ s - (3MSfjf EHQGgje UGdM YHjO(B.s ((3GdbGgQI (B: s (3OGQ GdfgVI GdYQHjI,s, 1977)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdbVGA GdLfGFj GdOhdjs; (3bGfhf GdELQGAGJ GdLfGFjIs -- (3eUQs