(3GdQjGVI hGdOhGA(B: (3GdYdGbIGdeJHGOdI GdGKGQ GdGjLGHjI hGdSdHjI (B/ s - (3YRGdOjf GdOfTGQis ([S.N] : (3OGQ GdeQjN ddfTQ , s, 1988)
Keywords: (3GdGeQGVs; (3GdQjGVI GdHOfjIs; (3GdQjGVIs; (3GdefheGJs; (3GdefTWGJs; (3GdJONjfs; (3GdUMIs