that is (页面存档备份,存于互联网档案馆) (Oxford: Oxford University Press, 2000) 103. DickTeresi, "Zero" (页面存档备份,存于互联网档案馆), The Atlantic, July 1997 (see under Calendars
Indian Philosophies ISBN 1-58115-203-5, Allwarth Press, 2002, p. 317-321. Teresi, Dick. Lost Discoveries: The Ancient Roots of Modern Science. Simon & Schuster
Toronto Press Incorporated 1999, ISBN 978-0-8020-4390-0, pp. 157-158. Teresi, Dick. Lost Discoveries: The Ancient Roots of Modern Science. Simon & Schuster
Herald-Journal. 2003-05-19 [2013-12-27]. (原始内容存档于2016-04-27) (英语). Teresi, Dick. Lost Discoveries: The Ancient Roots of Modern Science--from the Babylonians