(3NRGFf GdcJH GdbOjeI ai GdYQGb(B: (3efP GbOe GdYUhQ MJi SfI (B1000 (3ddgLQI (B/ s - (3chQcjS YhGOs ((3HjQhJ (B: s (3OGQ GdQGFO GdYQHi , s, 1986)
Keywords: (3GdYQGbs; (3GdecJHGJ (B- (3GdYQGbs; (3GdecJHGJ GdbhejIs; (3GdcJH GdfGOQIs; (3JGQjN GdcJH hGdecJHGJs