How should I use "sampling" in the case of questionnaires posted on the internet?

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Hafidha S. Al-Barashdi

Dear researcher

Electronic data collection can take on many forms ranging from computer- administered surveys to internet surveys. While the benefits to collecting data electronically are many, obstacles also exist.

This article my help you:

http://www.gesis.org/fileadmin/upload/forschung/publikationen/gesis_reihen/zuma_arbeitsberichte/97_09.pdf

Ademir Macedo Nascimento

Thank your very much for your help