There are lots of places where scriptures are put with other scriptures – it’s a theme and there are meta levels and all sorts of fun.
Small plates + large plates (King Benjamin’s time)
Small plates + abridgment (Mormon’s doing)
Abridgment + Book of Ether (another abridgment) (Moroni’s doing)
Stick of Ephraim + Stick of Judah (as talked about Ezekiel)