(3COH GdbGVj (B/ s - (3GdeGhQOj, CHh GdMSf Ydj Hf eMeO Hf MHjHs; (3GdSQMGf, eMjj gdGds ((3HZOGO (B:s (3QFGSI OjhGf GdChbGa,s, 1972)
Keywords: (3GdESdGes; (3Gdabg GdESdGejs; (3Gdabg GdTGaYjs