(3fThGQ GdeMGVQI hGNHGQ GdePGcQI (B/ s - (3GdJfhNi (B, (3GdbGVi GHhYdi GdeMSfs ([S.N] : (3dLfI GdGYdGe hGdOQGSGJ GdeSJbHdjI , s, 1971)
Keywords: (3GdGOH GdYQHis; (3GdfKQ GdYQHis; (3GdHdGZI GdYQHjIs; (3GdOhdI GdYHGSjI GdKGfjIs; (3GdJGQjN GdGSdGeis; (3GdeLehYGJs