(3cJGH GdOQI GdeUGfI (B((3eQab OGNd SdSdI fUhU YQHjI hOQGSGJ GSdGejI GdYOO (B28 , 1989 / s - (3GMeO GdOeQOGTi cJNOG YRHGfs; (3YHOGdQMje YHOGdQMef YHOGdQMjes ([S.N] : (3GdeYgO GdaQfSi ddGKGQ GdTQbjI , s, 1989)
Keywords: (3eUQs; (3JGQjNs