Let me tell you something. You should learn your major well first.
Mastered some knowledge. This is what employers value most. They can learn and use it.
Self-taught undergraduate course is recognized by the state. The gold content is only related to the undergraduate unified recruitment. Including 1.2.3 copies, which is equivalent to 3 copies, which is bigger than adult education and more recognized by correspondence.
If you get a job, it depends on your mastery of what you have learned. Whether you can use the knowledge you have learned in the enterprise with ease.
Employment benefits also depend on the company you apply for. But on the whole, large state-owned enterprises still recognize unified recruitment and do not recognize self-taught candidates.
However, in foreign countries, the self-taught examination is basically the same as the unified examination.
If you want to say which number is the self-taught undergraduate course or the three books, I can only say that it depends on your major. Moreover, it takes hard work and perseverance to get the self-study exam. It is estimated that all three books can get diplomas as long as they pass the final exam and do not violate the school rules.