"Peoples and languages in pre-islamic Indus valley". Archived from the original on 2008-05-09. Retrieved 2008-11-20. most scholars have taken the 'Dravidian hypothesis' seriously ↑ The Indus Script ↑ Goody, Jack (1987), The Interface Between the Written and the Oral, Cambridge University Press, pp. 301–302 (note 4) ↑ Allchin, F.Raymond; Erdosy, George (1995), The Archaeology of Early Historic South Asia: The Emergence of Cities and States, Cambridge University Press, p. 336 ↑ Salomon, Richard, On The Origin Of The Early Indian Scripts: A Review Article.