(3OQGSGJ Mhd VeGf GdGSJKeGQ ai bhGfjf GdHdGO GdYQHjI (B/s - (3eYgO GdHMhK h GdOQSGJ GdYQHjI s ((3GdbGgQI (B:s (3eYgO GdHMhK h GdOQSGJ GdYQHjI (B,s, 1978)
. 561-567 (3HHdjhLQGajG(B: (3UaMGJ(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdeGdjI GdYGeI h GdJTQjY GdVQjHi s; (3GdGSJKeGQ s; (3bhGfjf GdHdGO GdYQHjI s