UESP lists all the names of the books and states that they all come from the same source.
Was anyone able to get the books in SE that are NOT "Khunzar-ri and the Lost Alfiq" or "The Favored Daughter of Fadomai"? I got 27 of the former and 17 of the latter (the drop rate is that good), but none of the other two.
In Summerset I stuck on 3 books and cannot seem to get "Artaeum Lost".
Any luck for you?