(3JKbja GddSGf GdYQHj (B: s (3HMhK dZhjI (B/ s - (3eWQ, YHO GdYRjRs ((3GdbGgQI (B:s (3OGQG deYGQa,s, 1991)
Keywords: (3GddZI GdYQHjIs; (3GdCNWGAs; (3GdCNWGA GddZhjIs