White, Jesse (ed.). "Major State Departments & Agencies". Illinois Blue Book 2021-2022(PDF). p. 235. Archived from the original(PDF) on November 23, 2021. Retrieved February 17, 2022.
White, Jesse (ed.). "Major State Departments & Agencies". Illinois Blue Book 2021-2022(PDF). p. 235. Archived from the original(PDF) on November 23, 2021. Retrieved February 17, 2022.