User talk:2409:4063:419A:34D9:1980:5931:F61B:873F

January 2022
Hello, I'm Le Marteau. I noticed that you made a change to an article, Systems analysis, 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. Le Marteau (talk) 04:00, 22 January 2022 (UTC)