(in Korean) UNFPA (2009-10-01). "한반도 인구 7천400만명 시대 임박". United Nations. Archived from the original on 2010-04-17. Retrieved 2010-04-14. {{cite journal}}: Cite journal requires |journal= (help)
Bruce G. Cumings. "The Rise of Korean Nationalism and Communism". A Country Study: North Korea. Library of Congress. Call number DS932 .N662 1994. Archived from the original on 2007-04-10. Retrieved 2013-10-28.
Bureau of East Asian and Pacific Affairs (February 2009). "Background Note: North Korea". U.S. State Department. Archived from the original on 1 July 2009. Retrieved 4 July 2009.
(in Korean) UNFPA (2009-10-01). "한반도 인구 7천400만명 시대 임박". United Nations. Archived from the original on 2010-04-17. Retrieved 2010-04-14. {{cite journal}}: Cite journal requires |journal= (help)
Bruce G. Cumings. "The Rise of Korean Nationalism and Communism". A Country Study: North Korea. Library of Congress. Call number DS932 .N662 1994. Archived from the original on 2007-04-10. Retrieved 2013-10-28.
Bureau of East Asian and Pacific Affairs (February 2009). "Background Note: North Korea". U.S. State Department. Archived from the original on 1 July 2009. Retrieved 4 July 2009.