BABONES, S.; FARABEE-SIERS, R. M. Indices of Trade Partner Concentration for 183 Countries. Journal of World-Systems Research, [S. l.], v. 18, n. 2, p. 266–277, 2012. DOI: 10.5195/jwsr.2012.470. Disponível em: http://jwsr.pitt.edu/ojs/jwsr/article/view/470. Acesso em: 15 jul. 2024.