zero based budgeting example

Dear colleagues, hello everyone. I am currently looking for high-quality case studies or professional books on Zero-Based Budgeting. This method has been widely reported as one of the key success factors for Jorge Paulo Lemann (whose companies include Ambev beer, Burger King, and Heinz, recently acquired in partnership with W. Buffett). However, I have only found an old book published in 1973 on Amazon, and most related articles online are superficial. Therefore, I would appreciate in-depth insights into this practical method, as well as related case studies or professional references. Thank you all for your guidance!