I would say anywhere with an org that has an official certificate such as any resources provided or suggested by your teacher or you can go online and look up your topic and see what pops up make sure to check the little link that says. Org I would not recommend. Com because that could be false I also do not recommend Wikipedia because it is not that it is all the time false it is just that it can be changed and Wikipedia does correct those changes but you could be on the website at a time where it has not been corrected hope this helps PuppyCat sorry scratch that PuppyCat part Dash
