ISBN 9781400831104. OCLC 496275617. Mallory, J. P.; Adams, Douglas Q. EncyclopediaofIndo-Europeanculture. Taylor & Francis. 1997: 4 and 6 (Afanasevo), 13 and 16
University Press. Erdosy, George, ed. (2012), The Indo-Aryans of Ancient South Asia: Language, Material Culture and Ethnicity, Walter de Gruyter How ancient
ISBN 963-9116-42-4. Mallory, J. P.; Douglas Q. Adams. EncyclopediaofIndo-Europeanculture. Taylor & Francis. 1997: 49 [2021-07-11]. ISBN 978-1-884964-98-5