Audience Response Systems in Ballymena #Ballymena https://t.co/4b3Eial68A
Audience Response Systems in Ballymena #Ballymena https://t.co/4b3Eial68A
— Audience Response (@ukaudience) June 15, 2018
source https://audienceresponsesystemsuk.tumblr.com/post/174916151313
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