(3eYLe Yde GdGNdGb (B((3gOjI ef GdGOjH YHOGdaJGM GdLed(B) / s - (3OGQ GdGOHjGJ GdSjGSjIs ([S.N] : (3OGQ GdJbOe , s, 1984)
Keywords: (3Yde GdGNdGbs