(3LQjeI GdJHOjO hedMb jVe NeSjf UjZI bGfhfjI (B/s - (3MSf, Ydj YhVs ((3GdbGgQI (B:s (3OGQ GdKbGaI ddWHGYI hGdfTQ,s, 1987)
(3HHdjhLQGajI (B: (3UaMI (B409-415.s
Keywords: (3LQGFe GdCehGds -- (3bhGfjf hJTQjYGJs -- (3eUQs; (3GdGNJdGSs -- (3bhGfjf hJTQjYGJs -- (3eUQs