(3eLeY GdHMhK GdGSdGejI JGQjNg hJWhQgs ([S.N] : (3GdGRgQ , s, 1983)
Keywords: (3eUQs; (3MQcGJ GdGUdGM hGdJLOjOs; (3eMeO YHOg (B((3GdGeGe(B)s; (3GdGRgQ (B((3LGeY(B)s; (3GdGRgQ Hjf GdeGVi hGdMGVQs; (3GdGRgQ ai GdYUQ GdYKeGfis; (3GdGRgQ ai Xd GdKhQIs; (3eLeY GdHMhK GdGSdGejIs; (3GdHYKGJ GdYdejIs