(3OjfGejI GdfU (B( (3JfXjQ hGfLGR (B) / s - (3eMeO eaJGMs ([S.N] : (3GdeQcR GdKbGai GdYQHi , s, 1990)
Keywords: (3GdGSdhH (B, (3Ydes; (3GdHdGZI GdYQHjIs