(3NWH GdQShd Udi Gddg Ydjg hSde (B:s 574 (3NWHI ef cfhR GdOQQ hLhGeY Gdcde (B/s - (3GdNWjH , eMeO Ndjd s ((3GdbGgQI (B:s (3OGQ GdaVjdI ddfTQ hGdJhRjY ,s, 1983)
Keywords: (3GdNWH GdOjfjI GdESdGejIs; (3GdMOjKs -- (3LhGeY Gdafhfs