(3GddZI GdYQHjI CUd GddZGJ cdgG (B/ s - (3GdHhQjfj, YHO GdQMef GdQMjes ((3YeGf (B:s (3OGQ GdMSf ddfTQ hGdJhRjY,s, 1998)
Keywords: (3GddZI GdYQHjIs; (3GddZGJs