WAKUŁA, Monika. The level of indebtedness of communes in the area of Ostrołęka-Siedlce subregion. Management and Administration Journal, [S. l.], v. 41, n. 114, p. 71–85, 2019. Disponível em: https://czasopisma.uws.edu.pl/znadministracja/article/view/403. Acesso em: 5 oct. 2024.