(3OjhGf OQjO Hf GdUeI GdLTei (B/ s - (3TGcQ GdaMGes; (3eMeO NjQ GdHbGYi (B((3LeY hJMbjb(B)s ((3HjQhJ (B: s (3OGQ bJjHI , s, 1981)
Keywords: (3GdTYQ GdYQHis; (3GdGOH GdYQHis; (3GdYUQ GdLGgdis; (3OhGhjf hbUGFOs