(3cJGH GdJMaI GdedhcjI ai GdOhdI GdJQcjI JGQjN OhdI GdeeGdjc GdHMQjI ai GdaJQI ef (B648 - 711 (3g` (B/ s - (3YHOGdMejO UGdM MeOGfs; (3HjHQS GdefUhQis ((3GdbGgQI (B: s (3GdOGQ GdeUQjI GddHfGfjI , s, 1987)
Keywords: (3eUQ (B- (3JGQjN (B- (3GdYUQ GdGSdGeis