(3CgejI GdcYHg GdeTQaI hGdHdO GdCejf HGdfSHI ddchf hGdfGS CLeYjf (B/s ((3OeTb(B-(3ShQjG(B:s (3OGQ WjHI GdOeTbjI,s, 1977)
Keywords: (3GdeRGQGJ GdESdGejIs; (3GdcYHIs