(3GdbGfhf GdOdi GSJNOGe GdWGbI GdfhhjI s - (3Hfhfg , eMehO NjQj s ((3GdbGgQI (B: s (3OGQ GdTYH , s, 1971)
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdbGfhf GdOhdj GdYGes