(3GdYdGbGJ GdeUQjI GdHGcSJfjI ai fUa bQf (B/ s - (3eMeO fYeGf LdGds ((3GdbGgQI (B: s (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1998)
Keywords: (3MQH GcJhHQ (B1973s; (3eUQ (B- (3GdGMhGd GdSjGSjIs; (3HGcSJGf (B- (3GdYdGbGJ GdNGQLjIs; (3eUQ (B- (3GdYdGbGJ GdNGQLjI (B- (3HGcSJGfs; (3HGcSJGf (B- (3GdGMhGd GdSjGSjIs; (3eUQ (B- (3GdYdGbGJ GdKbGajI (B- (3HGcSJGfs