Department of Labor, Employment and Training Administration, Unemployment Insurance Program Letter No. 15-20 (Apr. 4, 2020) (Ex. SEC-19-017)
Federal Reserve Bank of St. Louis (FRED), mirroring BLS CES series CES6056132001, FRED series TEMPHELPS, All Employees, Temporary Help Services (Sept. 26, 2026) (Ex. SEC-19-040)
American Staffing Association, Staffing Industry Statistics (ASA research page) (Sept. 26, 2026) (Ex. SEC-19-044)
