(3YjhH GdfaS (B/s - (3GdSdej, eMeO Hf GdMSjf Hf eMeO,s 325-412 (3g`(B.s; (3GdSjO, eLOj aJMjs ((3GdbGgQI (B:s (3OGQ GdUMGHI ddJQGK ,s, 1993)
Keywords: (3GdCNdGb GdESdGejIs; (3GdhYX hGdEQTGOs