(3cQI GdbOe Hjf GdfXQjI hGdJWHjb (B:s (3GdGYOGO GdHOfi ai cQI GdbOe (B/ s - (3Wg GSeGYjds; (3YeQh GHhGdeLOs; (3GHQGgje TYdGfs ([S.N] : (3OGQ GdacQ GdYQHi , s, 1989)
Keywords: (3JOQjHs; (3GdGdYGH GdQjGVjIs; (3cQI GdbOes