Indo-Greek Map

Hi PHG, could you please give me a list of sources (i.e. the books used) for your Indo-Greek map, as it stands I do think your map should remain though I would just like to see the sources for my self to make sure, the arguements used against it seem very weak with an ulterior motive (i.e. out of xenophobia and anti-European sentiment) Plus I don't think Narain should be considered as a reliable source in comparison with Tarn (Eurocentric? Oh come on, Europeans are generally apathetic towards each other), Busagali as he is Indian himself during an anti-colonial, xenophobic and patriotic era.