(3af GdNHQ (B:s (3eUGOQg (B- (3YfGUQg (B-(3eLGdGJg GdMUhd Ydjg (B- (3JWHjbGJg (B. /s - (3COge, eMehOs ((3GdbGgQI (B:s (3GdecJHGJ GdcHQi GdbGgQI GdQjGV hLOI GdchjJ ,s, 1987)
Keywords: (3fXQjI s; (3JMQjQ s; (3UMajs; (3afhf s