(3eUGOQ GdeYdheGJ aj GdecJHGJ heQGcR GdJhKjb (B/s - (3GMeO GfhQ YeQ s ((3GdQjGV (B:s (3OGQ GdeQjN ddfTQ ,s, 1980)
Keywords: (3GdecJHGJ (B- (3JfXje hGOGQI s