[1]
Lau, C.Q. et al. 2019. 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. 13, 3 (Dec. 2019), 305–318. DOI:https://doi.org/10.18148/srm/2019.v13i3.7375.