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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 38 views
Last update: Aug 23, 2021 328 views
Biology
Last update: Mar 3, 2022 241 views
Chemistry
Last update: Mar 3, 2022 84 views
Engineering
Last update: Mar 3, 2022 57 views
History
Last update: Mar 3, 2022 182 views
Physics
Last update: Mar 3, 2022 36 views
Sociology
Last update: Mar 3, 2022 475 views
Last update: Mar 3, 2022 41 views
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