(3SjQI GdbjQhGf (B: s (3QSGdJgG GdOjfjI h GdKbGajI aj GdeZQH GdESdGej (B/ s - (3GdeWhi, eMeO GdYQhSjs ((3JhfS (B:s (3GdOGQ GdYQHjI ddcJGH,s, 1981)
Keywords: (3JGQjN JhfSs