Audience Response Systems in Northumberland #Northumberland https://t.co/v8FmBEzrSd
Audience Response Systems in Northumberland #Northumberland https://t.co/v8FmBEzrSd
— Audience Response (@ukaudience) December 20, 2019
source https://audienceresponsesystemsuk.tumblr.com/post/189775373083
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