(3eSfO GdGeGe GdTGaYi (B/ s - (3GdTGaYi, GHhYHOGddg eMeO Hf GOQjS, (B767-819 (3es ([S.N] : (3OGQ GdcJH GdYdejI ddfTQ hGdJhRjY , s, 1980)
Keywords: (3GdTQjYI GdGSdGejIs