Archer, Thomas M., Paul D. Warner, William Miller, Charles D. Clark, Susan James, Scott R. Cummings, and Usman Adamu. 2007. “Excellence in Extension: Two Products for Definition and Measurement”. Journal of Extension 45 (1). https://archives.joe.org/joe/2007february/tt1.php.
A Searchable Database of Research for the Expanded Food and Nutrition Education Program