MERRIT, Richard; ZINNES, Dina A. Data Development for International Research (DDIR) DDIR II: Event Data Research. IASSIST Quarterly, [S. l.], v. 15, n. 1, p. 4, 1991. DOI: 10.29173/iq552. Disponível em: https://iassistquarterly.com/index.php/iassist/article/view/552. Acesso em: 3 jul. 2024.