Jelaskan . dari Rungkun basa Indo-Arya dalam bahasa sunda

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Erdosy, Géorge. (1995). The Indo-Aryans of ancient South Asia: Language, material culture and ethnicity. Berlin: Walter de Gruyter. ISBN 3-11-014447-6.

Kobayashi, Masato.; & George Cardona (2004). Historical phonology of old Indo-Aryan consonants. Tokyo: Reséarch Institute for Languages and Cultures of Asia and Africa, Tokyo University of Foreign Studies. ISBN 4-87297-894-3.