(3GdeYLe GdehShYj aj GdceHjhJQ hGdEdcJQhfjc (B:s (3aQfSj(B-(3YQHj(B-(3EfLdjRj(B-(3CdeGfj(B-(3EjWGdj (B/ s - (3dhZGQa, CfOQjgs; (3GdMSjfj, YHO GdMSfs ((3HjQhJ (B:s (3GdeDSSI GdLGeYjI ddOQGSGJ hGdfTQ hGdJhRjY,s, 1986)
Keywords: (3GdMGSHGJ GdEdcJQhfjIs -- (3OhGFQ eYGQas