Yŏng-ho Ch'oe et al. (2000). Sources of Korean Tradition, p. 235 - 구글 도서; excerpt, "Korea signed a similar accord with the United States (the Treaty of Chelump'o, 1882) that was followed by similar agreements with other Western nations;" Korean Mission to the Conference on the Limitation of Armament, Washington, D.C., 1921-1922. (1922). Korea's Appeal to the Conference on Limitation of Armament, p. 29. - 구글 도서; excerpt, "Treaty and Diplomatic Relations Between the United States and Korea. Treaty of Friendship, Commerce, and Navigation dated May 22, 1882."
