− | If you want to use Sona to invite people to take the survey, please use the [http://www.sona-systems.com/help/limesurvey.aspx manual provided bij Sona]. | + | If you want to use Sona to invite people to take your survey, please follow the [http://www.sona-systems.com/help/limesurvey.aspx manual provided bij Sona]. |