Jabarkan Catatan dari Sakya (klan)

Silk, Jonathan A. 2008 ‘Putative Persian perversities: Indian Buddhist condemnations of Zoroastrian close-kin marriage in context.’ Bulletin of the School of Oriental and African Studies, 71: pp 433–464.

van Geel, B. et al. 2004. Climate change and the expansion of the Scythian culture after 850 BC: a hypothesis  Journal of Archaeological Science. 31 (12) December: 1735-1742.

Witzel, Michael. 1997. The Development of the Vedic Canon and its Schools: The Social and Political Milieu (Materials on Vedic Śākhās, 8) in Inside the Texts, Beyond the Texts. New Approaches to the Study of the Vedas. Harvard Oriental Series. Opera Minora, vol. 2. Cambridge 1997, 257-345