1. Visit the website of Yunnan Normal University Library: Search the website of Yunnan Normal University Library for relevant information. Most university libraries have online catalogs or retrieval systems, which can use keywords to search for information about books or CDs.

2. Use the library catalogue or retrieval system: after entering the library website, find the entrance of the book catalogue or retrieval system. In the retrieval system, you can enter the title, author or other relevant information to search for books containing CDs attached to books.

3. View book details: Once you find a book containing the CD attached with the book, please click the title or related links to view the details. The detailed information page of the book will provide information about the CD, such as the type, content and description of the attached CD.

4. Consult the library staff: If you can't find the relevant information on the library website, you can contact the library staff for help. The staff of the library will be very happy to help you inquire and provide relevant resource information. Yunnan Normal University, referred to as "Yunnan Normal University", is located in Kunming, Yunnan Province. It was jointly built by the people of China, the Ministry of Education and the Yunnan Provincial People's Government. Three local normal universities selected for the pilot reform of free normal students in China.