Audience Response Systems in Hall End #Hall #End https://t.co/BvLa8PnKUj
Audience Response Systems in Hall End #Hall #End https://t.co/BvLa8PnKUj
— Audience Response (@ukaudience) January 3, 2019
source https://audienceresponsesystemsuk.tumblr.com/post/181687672918
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