TRACZ-KRUPA, K. The Practice of Training of Local Administration in Opolskie Voivodship — the Research Findings. Regional Barometer. Analyses & Prognoses, [S. l.], n. 4 (26), p. 85–93, 2012. DOI: 10.56583/br.1309. Disponível em: https://czaz.akademiazamojska.edu.pl/index.php/br/article/view/1309. Acesso em: 5 jul. 2024.