“The Economic Contributions of Indiana’s Energy Industry” (Feb 2018), Indiana University, Kelley School of Business http://www.1reqyva4.beacongears.com/uploads/9/6/1/0/9610381/energy_industry_economic_analysis_final.pdf
“The Economic Contributions of Indiana’s Energy Industry” (Feb 2018), Indiana University, Kelley School of Business http://www.1reqyva4.beacongears.com/uploads/9/6/1/0/9610381/energy_industry_economic_analysis_final.pdf