Zając, Dariusz. “Economic Activity of the Population in Developing Non-Agricultural Sphere in Border Powiats of Podkarpackie Voivodship”. TRANSBORDER ECONOMICS. International Journal on Transborder Economics, Finance, Politics and Statistics. 1, no. 2 (December 31, 2016): 127–138. Accessed December 5, 2025. https://journals.ur.edu.pl/te/article/view/8612.