Farazmand, Ali . "Persian/Iranian Administrative Tradition", in Jay M. Shafritz (Editor), . International Encyclopedia of Public Policy and Administration. Boulder, CO: Westview Press. 1998. стр. 1640––. – Excerpt: "Persians never practiced mass slavery, and in many cases the situations and lives of semi-slaves (prisoners of war) were in fact better than the common citizens of Persia." (pp.) 1642
