The Encyc. Iranica makes clear in the article on Afghanistan — Ethnography that "The term Farsiwan also has the regional forms Parsiwan and Parsiban. In religion, they are Imami Shia. In literature, they are often mistakenly referred to as Tajik." Dupree, Louis (1982) "Afghanistan: (iv.) Ethnography", in Encyclopædia Iranica Online Edition 2006.
Ch. M. Kieffer, "Afghanistan v. - Languages of Afghanistan", in Encyclopaedia Iranica, printed version, p. 507[usurped]: "[...] 'Dari' is a term long recommended by Afghan authorities to designate Afghan Persian in contrast to Iranian Persian; a written language common to all educated Afghanis, Dari must not be confused with Kaboli, the dialect of Kabul [...] that is more or less understood by more than 80% of the non-Persian speaking population [...]"
