HEFFNER, K.; KLEMENS, B. Living Conditions and Social-Economic Activity of the Rural Population (Example of Opolskie Voivodship). Regional Barometer. Analyses & Prognoses, [S. l.], n. 4 (30), p. 84–88, 2012. DOI: 10.56583/br.1171. Disponível em: https://czaz.akademiazamojska.edu.pl/index.php/br/article/view/1171. Acesso em: 8 nov. 2024.