Where can I find templates of books of account for a business?

First off, I'm not a business owner. Just currently developing a capstone for a business.

Problem: Medyo may prob lang kami sa availability ng client namin kaya hindi pa kami nakakakuha ng format ng mismong books of accounts (journals, etc.) nila. Kaya my group is planning na kumuha na lang ng template online para may progress na yung system namin.

Question: Pare-pareho lang ba ang format ng pinapass ng businesses sa BIR although magkakaiba (this was confirmed by the BIR itself when we consulted to them) ang format ng books of accounts ng bawat business?

Sorry agad if ever this one's a dumb question. Just want a confirmation and clarification.