https://www.mofa.go.jp/mofaj/annai/honsho/shiryo/akebono/03.html
琉米修好条約
Convention between the Lew Chew Islands and the United States of America
https://en.wikisource.org/wiki/Convention_between_the_Lew_Chew_Islands_and_the_United_States_of_America
琉蘭修好條約
https://nl.m.wikisource.org/wiki/Traktaat_tusschen_Nederlanden_en_Lioe-kioe
琉仏修好条約
https://fr.wikisource.org/wiki/Convention_entre_la_France_et_les_Iles_Liou-tchou?uselang=ja
https://tel.archives-ouvertes.fr/tel-03257454/document
