(3eNJUQ efgGL GdbGUOjf (B/s - (3GHf bOGeI GdebOSj, CMeO Hf YHO GdQMef Hf CMeO,s 651-689 (3g`(B.s; (3YhjVI, UdGM eMeO eMeOs ((3GdefUhQI(B- (3eUQ (B:s (3OGQ GHf QLH,s, 1999)
Keywords: (3GdJQHjI GdESdGejIs; (3GdCNdGb GdESdGejIs