Louis Frédéric, Le Nouveau Dictionnaire de la civilisation indienne : Édition intégrale, Robert Laffont, coll. « Bouquins », (1re éd. 1987), 3127 p. (lire en ligne), p. 420.
(en) Sir Alexander Cunningham, Four Reports Made During the Years, 1862-63-64-65, Government Central Press, (lire en ligne), p. 43–52.
Maharashtra, Marg Publications, 1985, p. 209 Pdf p. 2 "The surface of the inside walls are polished to a mirror-like finish, an exclusive characteristic of Mauryan architecture and sculpture, first derived through the media of Achamenid art after the disintegration of the Persian Empire in AD 330 and the dispersal of skilled Persian and Perso-Greek artisans".
persee.fr
Yailenko,Les maximes delphiques d'Aï Khanoum et la formation de la doctrine du dhamma d'Asoka, 1990, pp.239-256.