https://www.sifamilies.org/r-20-preschoo-ages-3-5.html
Early Learning Opportunities ages 3-5 - SI Families Connect
SI Families information and resources for Preschoo age children include PreK,Head Start and private PreK programs in southern Illinois
early learning opportunitiesagessifamiliesconnect
https://www.abs.gov.au/ausstats/abs@.nsf/ProductsbyReleaseDate/D4FE5211323D4FD6CA257591001B1CB3?OpenDocument
4105.0.55.001 - Early childhood learning and care: data sources, gaps and opportunities, 2008