(3GdHfGjI aj TQM GdgOGjI (B/s - (3HOQ GdOjf GdYjfj, eMehO Hf CMeO Hf ehSi,s 762-855 (3gLQjG(B.s; (3GdQGeahQj, fGUQ GdESdGes ((3HjQhJ (B:s (3OGQ GdacQ,s, 1990)
Keywords: (3Gdabg GdMfajs