What are the books that shake copper coins for divination?

Well, it's not difficult. If you want to be intuitive, quick, simple and rude, such as money divination, it is a bit like unlocking, but it does not conform to the arithmetic principle. If you want to be accurate but complex and true. "Add and delete Bu Yi", "Golden Rule" and so on, but it takes a long time to study and summarize! for reference only