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John Bartles

 
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John Bartles
I may not know everything, but I know where everything is.

Ask me! I'm here to help.

My Guides

Last update: Jun 22, 2021 88 views
Last update: Aug 23, 2021 729 views
Biology
Last update: Aug 24, 2020 383 views
Chemistry
Last update: Aug 24, 2020 144 views
Engineering
Last update: Aug 24, 2020 153 views
History
Last update: Aug 24, 2020 86 views
Physics
Last update: Aug 24, 2020 15 views
Sociology
Last update: Oct 20, 2020 683 views
Last update: Aug 24, 2020 40 views
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