1.JD.COM, Taobao and other e-commerce platforms: On these websites, you can search the textbooks of CDB, select the textbooks you need, and then place an order for purchase.
2. Online bookstores, such as Dangdang.com and China Book Networks: These websites also sell textbooks developed by China. You can search for the required teaching materials on the website and place an order to buy them.
3. Physical Bookstore: Some large bookstores, such as China Library, also sell textbooks developed by the state, which can be purchased directly from physical bookstores.
It should be noted that the price and preferential strength of different purchase channels may be different, so you can choose the purchase channel according to your own needs and actual situation.