History of the rupee

丹及丁加奴的「吉賓幣」（Keping）及檳城元（Penang dollar）。 1826年，英屬印度盧比（英语：History of the rupee#Coinage since the British period）成爲了海峽殖民地間唯一同行的官方貨幣，因早期為便於管理，海峽殖民地被劃爲當時英屬

Incidence of Urban Rates, Parts I, II and III" 1900, EJ "Defence of Mr. Harrison's Calculation of the Rupee Circulation", 1900, EJ "Review of J.B. Clark's

歷代尚吉巴蘇丹列表（英语：List of sultans of Zanzibar） 存档副本. [2021-04-14]. （原始内容存档于2020-10-30）.  Gascoigne, Bamber. HISTORY OF ZANZIBAR. HistoryWorld. 2001-Ongoing

Making Britain. www.open.ac.uk. [1 May 2018]. （原始内容存档于23 June 2018）.  1 Rupee Coin of 1992 – Quit India Movement Golden Jubilee. [12 March 2017]. （原始内容存档于6

  Cajori, Florian. Origin and meanings of the signs + and -. A History of Mathematical Notations, Vol. 1. The Open Court Company, Publishers. 1928.  Wright