Pomianek, Iwona. “Economic and Social Activeness As Determinants of Local Development in Mazovieckie Voivodeship (Poland)”. Olsztyn Economic Journal 13, no. 2 (April 12, 2018): 195–206. Accessed June 25, 2024. https://czasopisma.uwm.edu.pl/index.php/oej/article/view/2772.