WOŹNIAK-JĘCHOREK, Beata. The Effect of Interest Groups on the Labour Market. Trade Unions in Poland. Studia Oeconomica Posnaniensia, Poznan, Polska, v. 2, n. 7, p. 73–93, 2014. DOI: 10.18559/0a0v7f65. Disponível em: https://journals.ue.poznan.pl/soep/article/view/3316. Acesso em: 3 sep. 2026.