https://www.logos.com/product/204038/beyond-canon-early-christianity-and-the-ethiopic-textual-tradition
You probably already have it. And the savings won't buy you a Big Mac. But just in case.
The title is a bit misleading. True, the Ethiopic canon is the centerpiece, but the discussions weave in details, between the traditional canon writers (whether Catholic or Protestant canon), and the expanded canon. And just remember ... Jude said Enoch did write Enoch. Give Enoch some credit (per Jewish traditions, Noah put it on the Ark).
Recommended for those quiet Enochian evenings.