Katz, Rodney P. (1992). "National Security". In Savada, Andrea M.; Shaw, William (eds.). South Korea: a country study. Area Handbook (4th ed.). Washington, D.C.: Library of Congress. p. 291. LCCN91039109. Retrieved 20 October 2021.
lccn.loc.gov
Katz, Rodney P. (1992). "National Security". In Savada, Andrea M.; Shaw, William (eds.). South Korea: a country study. Area Handbook (4th ed.). Washington, D.C.: Library of Congress. p. 291. LCCN91039109. Retrieved 20 October 2021.