(3GdNjGd (B: s (3eagheGJg h hXGFag (B/ s - (3fUQ, YGWa LhOIs ((3GdbGgQI (B:s (3GdgjFI GdeUQjI GdYGeI ddcJGH,s, 1984)
Keywords: (3GdNjGds; (3GdCOHs