Abstract
References
1.
Couper, M. 2008. Designing Effective Web Surveys . New York: Cambridge University Press.
2.
Groves, R.M., F.J. Fowler, Jr., M.P. Couper, J.M. Lepkowski, E. Singer, and R. Tourangeau. 2009. Survey Methodology . Hoboken, NJ: John Wiley & Sons.
3.
Tourangeau, R., F. Conrad, and M. Couper. 2013. The Science of Web Surveys . Oxford: Oxford University Press.