(3OQGSGJ ai GdMVGQI GdGSdGejI (B/ s - (3MSf GdHGTGs ([S.N] : (3OGQ GdfgVI GdYQHjI , s, 1992)
Keywords: (3GdJGQjN GdGSdGeis; (3GdJQGK GdGSdGeis; (3GdMVGQI GdGSdGejIs