1. First, we need to open the edited content in the word document, then click the mouse where we need to add comments, and then find the reference in the software-insert endnotes.

2. After clicking, you will see a small 1 at the mouse position and a small 1 at the end of the article. This is the place to add comments, where you can mark the source of the reference.

3. If you don't like the default style of this annotation, you can also modify it, find this annotation in it, right-click it, and then select footnotes and endnotes.

4. Then find the format in the open window, and then select the square bracket style, where you can adjust the style. The above is the method for enterprises to mark the found information in their papers.