(3CKQ GdENJdGa aj GdbhGYO GdCUhdjI aj ENJdGa GdabgGA (B/ s - (3GdNf, eUWai SYjOs ((3HjQhJ (B:s (3eDSSI GdQSGdI,s, 1982)
Keywords: (3Gdabg GdESdGejs; (3GdabgGA GdeSdehfs; (3abg GdSfIs; (3GdESdGes