As for the rest of the acts of Jehoram, along with all his accomplishments, are they not written in the book of the Chronicles of the Kings of Judah?
The rest of Jehoram’s acts and accomplishments are said to be written in the book of the Chronicles of the Kings of Judah.
This verse gives the standard closing notice for the royal account.
20In the days of Jehoram, Edom rebelled against the hand of Judah and appointed their own king. 21So Jehoram crossed over to Zair with all his chariots. When the Edomites surrounded him and his chariot commanders, he rose up and attacked by night. His troops, however, fled to their homes. 22So to this day Edom has been in rebellion against the hand of Judah. Likewise, Libnah rebelled at the same time. 23As for the rest of the acts of Jehoram, along with all his accomplishments, are they not written in the book of the Chronicles of the Kings of Judah? 24And Jehoram rested with his fathers and was buried with them in the City of David. And his son Ahaziah reigned in his place.