Mulroy, Maureen T., and Lisa Kraimer-Rickaby. 2006. “The Impact and Sustainability of 4-H Youth Programs”. University of Connecticut, Center for Applied Research. https://www.yumpu.com/en/document/read/42980380/the-impact-and-sustainability-of-4-h-youth-development-programs.
A Searchable Database of Research about the 4-H Program