. . . . . . . . "History" . . . . . . . . . "Richō kōnōsei no kenkyū"@ja . "Richō kōnōsei no kenkyū" . . "Richō kōnō sei no kenkyū" . . . "李朝貢納制の研究" . "Study on the tribute system of the Ri Dynasty" . . "Impôt Corée Histoire." . . "Sozeiseido Chōsen Rekishi Richōjidai." . . "租稅制度 朝鮮 歴史 李朝時代" . . .