(3OQGSGJ aj GdCdaGX GdYGejI GdehUdjI hebGQfJgG eY GdGdaGX GdYGejI aj GdGbGdje GdYQHjI (B/ s - (3GdHcQj,MGRes ((3HZOGOs (3O(B.(3fs, 1972)
Keywords: (3GddZI GdYQHjIs -- (3GdaGXs