(3GdJMdjd Gdcej aj GdLZQGajG (B/s - (3QGSjf , LGf HQfGQ s ((3GdLRGFQ (B:s (3OjhGf GdeWHhYGJ GdLGeYjI ,s, 1983)
Keywords: (3Gdcej s; (3GdJMdjds; (3GdLZQGajG s