"It is probably traceable to a common cultural inheritance, stretching from the Mediterranean to the Ganges valley, and manifested by the sepulchres, conical mounds of earth on a circular foundation, of about the eighth century B.C. found in Eritrea and Lydia." Rao, P. R. Ramachandra (2002). Amaravati. Youth Advancement, Tourism & Cultural Department Government of Andhra Pradesh. p. 33.
Commenting on Gisbert Combaz: "In his study L'évolution du stupa en Asie, he even observed that "long before India, the classical Orient was inspired by the shape of the tumulus for constructing its tombs: Phrygia, Lydia, Phenicia ." in Bénisti, Mireille; K, Thanikaimony (2003). Stylistics of Buddhist art in India. Indira Gandhi National Centre for the Arts. p. 12. ISBN9788173052415.
Didactic Narration: Jataka Iconography in Dunhuang with a Catalogue of Jataka Representations in China, Alexander Peter Bell, LIT Verlag Münster, 2000 pp. 15ff
World Heritage Monuments and Related Edifices in India, Volume 1 p. 50 by Alī Jāvīd, Tabassum Javeed, Algora Publishing, New York [1]
encyclopedia.com. Credited to James Stevens Curl, A Dictionary of Architecture and Landscape Architecture, 2000, originally published by Oxford University Press 2000.
