Human Development Report 2009, UNDP, pp. 15 Filling Gaps in the Human Development Index, United Nations ESCAP, February 2009 "About Kosovo".
بازبینی‌شده در ۲۶ مارس ۲۰۰۹.  Human Development Report 2009, UNDP, pp. 15 Filling Gaps in the Human Development Index, United Nations ESCAP, February 2009 "About Kosovo".