苏联居民许可证制度(英语:PropiskaintheSovietUnion) Scott & Marshall 2005,第66頁. Winthrop 1991,第27–30頁. Béteille 2002,第66頁. Wilson, E. O. The Evolution of Caste Systems in Social
蘇聯居民證制度(英语:PropiskaintheSovietUnion) Susan Mathieson and David Atwell, "Between Ethnicity and Nationhood: Shaka Day and the Struggle over Zuluness in post-Apartheid