Display book in monthly ranges

Hello!

I have list of pdf books published in a page. Sinde they are too many I’d like to split/paginate them monthly. Couldn’t figure out the proper parameter to do that. tried wp_query sintax with ‘year’ and ‘monthnum’ parameters but didn’t work: [3d-flip-book mode=”link-lightbox” cols=”5″ tax=”6064″ title=”true” query='{“orderby”: “date”, “order”: “DESC”, “posts_per_page”: “31”, “year”: “2020”, “monthnum”: “10”}’][/3d-flip-book]

The page I need help with: [log in to see the link]