User talk:119.160.67.180

March 2021
Hello, I'm Donner60. I noticed that you made a change to an article, Functional group, but you didn't provide a source. I’ve removed it for now, but if you’d like to include a citation to a reliable source and re-add it, please do so! If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks. Donner60 (talk) 07:03, 10 March 2021 (UTC)
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