Level 3 Classics

Lots of texts and sources you can cite, the search function's pretty iffy though! If you're searching for texts of something/someone, try the Greek and Romanisised versions of the name, e.g. Herakles, Heracles, and Hercules. 

Heaps of sources, texts, paintings and pottery. Covers pretty much everything you'll need.

Massive book with heaps of stories–basically the Ancient Greek bible. Great primary source!

Even more stories!

Reliable encyclopaedia, always fact-checked, too.