(3GdSjGSI GdSdjeI aj JCOjH GdYGedjf HGdOhdI (B/ s - (3GdTjNdj, YHO GdbGOQs ((3YeGf (B:s (3OGQ GdacQ ddfTQ hGdJhRjY,s, 1983)
Keywords: (3GdEOGQI GdYGeIs; (3GdbGfhf GdEOQGjs; (3GdehXahfs