United States. Bureau of Economic Analysis. "Personal Income by State, First Quarter 2021 : Highlights: Personal Income by State, 1st Quarter 2021, BEA 21-27," Bureau of Economic Analysis (BEA) News Releases (June 22, 2021). https://fraser.stlouisfed.org/title/6148/item/604394/content/pdf/bea_newsreleases_20210622_highlights, accessed on March 25, 2025.