(3cja JUHM dGYH cQI bOe (B/ s - (3EHQGgje, eaJjs ((3GdbGgQg (B:s (3eDSSI eNJGQ (B- (3OGQ YGde GdeYQag dfTQ h JhRjY GdcJGH,s, 1993)
Keywords: (3cQI GdbOes