John Gill's  Exposition of the Bible 

2 Kings 15:36

Now the rest of the acts of Jotham, and all that he did, are they not written in the book of the chronicles of the kings of Judah?

Now the rest of the acts of Jotham, and all that he did, are they not written in the book of the chronicles of the kings of Judah? Of which mention is often made by the inspired historians; some of Jotham's other acts are recorded in the canonical book of Chronicles, 2 Chronicles 27:1.