A set of budget quotas. Prepare for reference. Without a quota, you can't do the budget and final accounts!

The new version of the budget manual. There are many versions, find the one that suits you.

Teaching materials for engineering cost specialty in colleges and universities.

Budget reference books with calculation examples.

More importantly, you can't just read books without practicing. You should have a simple set of engineering drawings, which is better than others showing two copies to professionals themselves and pointing out problems in order to learn well.

Finally, I suggest you attend the budget training course in construction engineering, because self-study is difficult. Budget and final accounts mapping is too wide. Because I am the teacher of this course. Knowing that some of these things are self-taught, they are not qualified for the job!