(3GdCTYGY h UMI GdEfSGf (B: s (3MOjK h eNJUQ (B/ s - (3LhaeGf, Lhf OHdjhs; (3HjQe, YHO GdMSjfs ((3HZOGO (B:s (3OGQ GdTDhf GdKbGajI,s, 1986)
Keywords: (3GdUMIs; (3GdSQWGfs; (3GdCTYIs