As for the rest of the acts of Jeroboam, how he waged war and how he reigned, they are indeed written in the Book of the Chronicles of the Kings of Israel.
Jewish Publication Society of America Version (JPS1917) - 1 Kings 14:19 >And the rest of the acts of Jeroboam, how he warred, and how he reigned, behold, they are written in the book of the chronicles of the kings of Israel.