(3TQM GdRQbGfi Ydi ehWG GdGeGe eGdc(B. (3W(B1 / s - (3eMeO Hf YHOGdHGbi Hf jhSa GdRQs ([S.N] : (3OGQ GdcJH GdYdejI ddfTQ hGdJhRjY , s, 1990)
Keywords: (3eSfO eGdc Hf GfSis; (3GdMOjK (B- (3eSfO GHh GfSis