Audience Response Systems in Omagh #Omagh https://t.co/eG0stiI2Zm
Audience Response Systems in Omagh #Omagh https://t.co/eG0stiI2Zm
— Audience Response (@ukaudience) October 28, 2020
source https://audienceresponsesystemsuk.tumblr.com/post/633257372749627393
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