(3GdfGQ gPg GdeQI(B:s (3LQGFe GdMQH GdGeQjcjI aj GdNdjL(B/s - (3cdGQc,QGeRjs ((3GdGQOf(B:s (3GdOSJhQ ddfTQ,s, 1993)
Keywords: (3MQH GdNdjL(B1991s