(3MUGQ GdKbGaI (B:s (3Hjf GdbfhGJ GdaVGFjI hGdOYhI GdCUhdjI (B/s - (3MLGRj, eUWais ((3GdOGQ GdHjVGA, GdeZQH (B:s (3GdeQcR GdKbGaj GdYQHj,s, 2000)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdJcfhdhLjG hGdMVGQIs; (3GdbfhGJ GdJdjaRjhfjI GdaVGFjIs; (3GdOYhI GdESdGejIs