A Global History of Architecture, Francis D. K. Ching, Mark M. Jarzombek, Vikramaditya Prakash, John Wiley & Sons, 2017 pp. 570ff
Didactic Narration: Jataka Iconography in Dunhuang with a Catalogue of Jataka Representations in China, Alexander Peter Bell, LIT Verlag Münster, 2000 pp. 15ff
"The railing of Sanchi Stupa No.2, which represents the oldest extensive stupa decoration in existence, (and) dates from about the second century B.C.E" Constituting Communities: Theravada Buddhism and the Religious Cultures of South and Southeast Asia, John Clifford Holt, Jacob N. Kinnard, Jonathan S. Walters, SUNY Press, 2012 p.197
Buddhist Architecture, Le Huu Phuoc, Grafikol 2009, p. 242