(3WhHi ddZQHGA (B/s - (3QeVGf GdMSfjf LeYIs ((3GdbGgQI (B:s (3GdeDSSI GdYQHjI GdMOjKI ddWHY hGdfTQ hGdJhRjY,s, 1988)
(3jTJed Ydi EQLGYGJ HHjdhLQGajI(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdKbGaI GdESdGejIs