(3OQGSGJ aj abg GddZI hGdafhdhLjG GdYQHjI (B/ s - (3YHGHfI , jMji s ((3GdGQOf (B: s (3OGQ GdTQhb ddfTQ h GdJhRjY , s, 2000)
Keywords: (3abg GddZI GdYQHjI s