(3GdHjQjSJQhjcG h GdLdGSfhSJ (B/s - (3LhQHGJThas; (3CMeO aDGO HdHY s ((3GdbGgQI (B:s (3OGQ GdeSJbHd GdYQHj (B,s, 1988)
(3jTJed Ydj GQLGYGJ HHdjhLQGajIs
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdbGfhf GdOSJhQjs