Audience Response Systems in Porth-y-felin #Porth-y-felin https://t.co/ik51atNnhC
Audience Response Systems in Porth-y-felin #Porth-y-felin https://t.co/ik51atNnhC
— Audience Response (@ukaudience) January 25, 2020
source https://audienceresponsesystemsuk.tumblr.com/post/190464594888
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