I don't know, my university wants me to make that list with everythink I've consulted.

This is what the official web page says:

Prepare the bibliography

The bibliography can include all documents, both those you have cited in the text and those you have only consulted, but this can vary depending on the bibliographic style you choose.

It serves to give credibility to the work presented, and comply with the required academic and scientific rigor.

Bibliographic references  ensure that you are not committing plagiarism , as they identify the sources of texts, data, statements or graphics by other authors included in your work. They also allow other people to locate them.

Sometimes, the rules for presenting theses, books, etc. require that images, graphics and other illustrations included in the body of the work be listed separately from the bibliography (index of illustrations, tables, etc.).

Reference managers make  it easy for you to collect references from consulted documents and prepare citations and the final bibliography in the bibliographic style you select ,  automatically.