LAU, Charles Q; CRONBERG, Alexandra; MARKS, Leenisha; AMAYA, Ashley. In Search of the Optimal Mode for Mobile Phone Surveys in Developing Countries. A Comparison of IVR, SMS, and CATI in Nigeria. Survey Research Methods, [S. l.], v. 13, n. 3, p. 305–318, 2019. DOI: 10.18148/srm/2019.v13i3.7375. Disponível em: https://ojs.ub.uni-konstanz.de/srm/article/view/7375. Acesso em: 25 apr. 2024.