(3fWGb QbGHI GdeMceI GdEOGQjI GdYdjG (B:s (3OQGSI JMdjdjI aj VhA CMcGe GdeMceI GdEOGQjI GdYdjG (B/s - (3QaYJ YjO SjOs ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI,s, 2011)
.247-251 (3HHdjhLQGajG(B: (3UaMGJs
(3jTJed Ydi EQLGYGJ HHdjhLQGajIs
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdbSe GdbVGFj aj eLdS GdOhdIs; (3GdbGfhf GdEOGQjs