(3TQM GdOGFQI GdgfOjI aj eYQaI SeJ GdbHdI (B/ s - (3GdNdNGdj, MSjf GdMSjfjs; (3fhQj, OQjO YHO GdbGOQs ((3HZOGO (B:s (3GdecJHI GdhWfjI,s, 1981)
Keywords: (3GdJhbjJs