Julian, Jr., Jack D., C. Elizabeth Hall, and David B. Yerger. “Estimating Core Unemployable And Workforce Non-Participants: A Study Of Rural Pennsylvania’s Labor Force”. Journal of Business & Economics Research (JBER) 8, no. 2 (February 1, 2010). Accessed July 18, 2024. https://clutejournals.com/index.php/JBER/article/view/668.