^ Shiels, Stan (2004). Stan Shiels on centrifugal pumps: collected articles from "World Pumps" magazine. Elsevier. ss. 11–12, 18. ISBN 185617445X. Shiels: "During the Sassanid period the term Eranshahr was employed to denote the region also known as Greater Iran..." Also: "...the Abbasids, who with Persian assistance assumed the Prophet's mantle and transferred their capital to Baghdad three years later; thus, on a site close to historic Ctesiphon and even older Babylon, the caliphate was established within the bounds of Greater Persia.
^ Gobineau, Joseph Arthur. "Gobineau and Persia: A Love Story". 3 Kasım 2013 tarihinde kaynağından arşivlendi. O'Donoghue: "...all set in the greater Persia/Iran which includes Afghanistan".
^ Gobineau, Joseph Arthur. "Gobineau and Persia: A Love Story". 3 Kasım 2013 tarihinde kaynağından arşivlendi. O'Donoghue: "...all set in the greater Persia/Iran which includes Afghanistan".