(3GdhSjW aj GdfXe GdSjGSjI (B/s - (3eMehO YGWa GdHfG s ((3GdbGgQI (B:s (3OGQ GdacQ GdYQHj (B,s, 1988)
(3jTJed Ydj GQLGYGJ HHdjhLQGajIs
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdbGfhf GdOSJhQjs; (3GdfXe GdSjGSjIs