(3BcGe GdeQLGf aj CMcGe GdLGf (B/s - (3GdTHdj, eMeO Hf YHO Gddg,s 712-769 (3gLQjs ((3HjQhJ (B- (3dHfGf(B:s (3OGQ GdeYQaI,s, 1988)
Keywords: (3GdTjGWjf hGdLGfs; (3GdSeYjGJs