(3SjchdhLjI Phj GdYGgGJ hGdeQVi (B: s (3GdCeQGV GdLSejI h GdfaSjI hGdLSejI GdfaSjI hGdGeQGV GdYbdjI (B/ s - (3MeRI, eNJGQs ((3LOg (B: s (3OGQ GdeLeY GdYdej, s, 1979)
Keywords: (3GdeQVi(B.s; (3Yde GdfaS(B.s