(3TQM bGfhf GdYbhHGJ (B:s (3GdbSe GdNGU ai LQGFe GdLQM hGdbJd GdYeOjI hZjQ GdYeOjI abgG (B- (3hbVGAG (B/s - (3CMeO cGed SdGeIs ((3LGeYI GdbGgQI (B:s (3ecJHI fgVI GdTQb ,s, 1987)
(3jTJed Ydj HHdHhLQGajIs
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdLQGFe GdeGSI HGdCTNGUs; (3bGfhf GdYbhHGJ GdbSe GdNGUs