COROMINA, Lluis; SARIS, Willem E. Measurement of Supranationalism. Survey Research Methods, [S. l.], v. 6, n. 2, p. 77–86, 2012. DOI: 10.18148/srm/2012.v6i2.5022. Disponível em: https://ojs.ub.uni-konstanz.de/srm/article/view/5022. Acesso em: 15 oct. 2024.