(3GdHSjchdhLjG GdGLJeGYjI (B/s - (3ZGdjfG GfOQjjaGs; (3GdjGS TGgjf s ((3GdEScfOQjI (B:s (3OGQ GdJbOe (B,s, 1980)
(3jTJed Ydj GQLGYGJ HHdjhLQGajI(B.s
(3GdfU HGddZI GdYQHjI eJQLe ef GdGfLdjRjIs
Keywords: (3GdbGfhf GdOSJhQj s