(3GdGSdGe hadSaI GdMVGQI (B/s - (3MSjf ahRj GdfLGQs ((3GdbGgQI (B:s (3eDSSI OGQ GdJYGhf ddWHY hGdfTQ,s, 1993)
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdadSaI GdGSdGejIs