K P Jayaswal; R D Banerji (1920). Epigraphia Indica Volume XX. Archaeological Survey of India. pp. 71–72., This article incorporates text from this source, which is in the public domain.
M. B. Chande (1998). Kautilyan Arthasastra. Atlantic Publishers. p. 313. ISBN9788171567331. During the period of the Nanda Dynasty, the Hindu, Buddha and Jain religions had under their sway the population of the Empire