KOZAK, Sylwester. The role and importance of the small business sector in the economic development of the Mazowieckie Province. Zeszyty Naukowe UPH seria Administracja i Zarządzanie, [S. l.], v. 41, n. 114, p. 60–70, 2019. Disponível em: https://czasopisma.uph.edu.pl/znadministracja/article/view/401. Acesso em: 22 jul. 2024.