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Evaluating a modular design approach to collecting survey data using text messages [journal article]
Source: Survey Research Methods, 9 (2015) 2. p.111-123
In Search of the Optimal Mode for Mobile Phone Surveys in Developing Countries: A Comparison of IVR, SMS, and CATI in Nigeria [journal article]
Source: Survey Research Methods, 13 (2019) 3. p.305-318