(3GdLQjeI GdOhdjI (B:s (3OQGSI JMdjdjI JWHjbI (B/s - (3MSfjf EHQGgje UGdM YHjOs ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI ,s, 1999)
(3jTJed Ydj GQLGYGJ HHdjhLQGajI(B.s
(3GdfU CZdHg HGddZI GdYQHjI eY HYV GdfUhU GdEfLdjRjIs
Keywords: (3GdLQGFe GdOhdjIs; (3GdbGfhf GdLfGFjs