(3efgL GdfbO GdJGQjNi(B: (3GdGSdGei hGdefgL GdGhQHi (B/ s - (3YKeGf ehGais ([S.N] : (3eDSSI GdKbGaIGdLGeYjI ddWHY hGdfTQ , s, 1986)
Keywords: (3GdadSaI GdGSdGejIs; (3Yde GdQhGjIs; (3GdGSJOdGds