Albert Barnes Commentary 2 Chronicles 16:1

"In the six and thirtieth year of the reign of Asa, Baasha king of Israel went up against Judah, and built Ramah, that he might not suffer any one to go out or come in to Asa king of Judah." — 2 Chronicles 16:1 (ASV)

This passage runs parallel with the book of Kings (see the marginal reference).