In this [recent question](https://linguistics.stackexchange.com/questions/67/is-the-seeming-relation-between-the-sound-n-and-negativity-purely-coincidental), I was trying to research a list of translation for "no", and a quick google found [this page](http://users.elite.net/runner/jennifers/no.htm). That website also has other similar pages, like translation of "Hello", "Good morning", etc.

However, I am not sure about the reliability of those translations, and the website seems to target a tourist audience, not linguists. Where can I find a reliable and academic source? 

They can be helpful to find/identify cognates, etc.