If you go to the self-study examination office to apply for self-study examination, and then make sure that your hope nursing major is Wu Da, the diploma is formal. As long as you have completed all the courses, and then write your thesis and defense, you can apply for the undergraduate certificate. Thesis and defense are presided over by the examiner's college. The certificate is also applicable to the college where the examiner is located.

This self-study certificate will have the seal of the examiner's college and the seal of your Hubei self-study office.

What I got after the self-study exam was a diploma, not a certificate of completion.