(3GdCehjhf h GdNdGaIs - (3YWhGf(B. (3MSjfs ((3OGQ GdLjds (3HjQhJs, 1986)
Keywords: (3GdJGQjN GdYQHj GdESdGejs; (3GdNdGaI GdCehjIs; (3GdGSdGe (B- (3JGQjN s