(3GdVjGA GddGeY ef GdNWH GdLhGeY (B/s - (3GdYKjejf, eMeO Hf UGdM Hf eMeOs 1347-1421 (3gLQjs ((3LOI (B- (3GdSYhOjI (B:s (3OGQ GdefGQI ,s, 1992)
Keywords: (3GdNWH GdOjfjI GdESdGejIs; (3GdhYX hGdEQTGOs