As for the rest of the acts of Hezekiah and his deeds of loving devotion, they are indeed written in the vision of the prophet Isaiah son of Amoz in the Book of the Kings of Judah and Israel.
Jewish Publication Society of America Version (JPS1917) - 2 Chronicles 32:32 >Now the rest of the acts of Hezekiah, and his good deeds, behold, they are written in the vision of Isaiah the prophet the son of Amoz, and in the book of the kings of Judah and Israel.