Tripathi, R. P. (1981). Studies in political and socio-economic history of early India. Neeraj Prakashan.
Lua i Stíl Chicago (17ú heag.)Tripathi, Ram Prasad. Studies in Political and Socio-economic History of Early India. Allahabad: Neeraj Prakashan, 1981.
Lua MLA (8ú heag.)Tripathi, Ram Prasad. Studies in Political and Socio-economic History of Early India. Neeraj Prakashan, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.