(3OQGSI GdcJH GdebOSI aj VhA GdeYGQa GdMOjKI (B/ s - (3HhcGi, ehQjSs ((3HjQhJ (B:s (3OGfjI ddfTQ h GdJhRjY,s, 1991)
Keywords: (3GdOjf GdebGQfs