Shaffer, Jim G. (1995). Cultural tradition and Palaeoethnicity in South Asian Archaeology. In: Indo-Aryans of Ancient South Asia. Ed. George Erdosy. ISBN 3-11-014447-6
Shaffer, Jim G. (1999). Migration, Philology and South Asian Archaeology. In: Aryan and Non-Aryan in South Asia. Ed. Bronkhorst and Deshpande. ISBN 1-888789-04-2.
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