(3GdESdGe h GdJfejI GdELJeGYjI (B/ s - (3YHO GdMejO, eMSfs ((3gjQfOf , aQLjfjG (B: s (3GdeYgO GdYGdej ddacQ GdESdGej, s, 1992)
Keywords: (3GdeLJeY GdESdGej(B. s; (3GdJfejI GdELJeGYjI(B. s; (3GdESdGe(B. s