* Ibaragi Kazuo 荊木計男: "Ei Man Chōsen ō Sakuhō ni tsuite" 衛満朝鮮冊封について, Chōsen Gakuhō 朝鮮学報 (Journal of the Academic Association of Koreanology in Japan) Vol.
* Ibaragi Kazuo 荊木計男: "Ei Man Chōsen ō Sakuhō ni tsuite" 衛満朝鮮冊封について, Chōsen Gakuhō 朝鮮学報 (Journal of the Academic Association of Koreanology in Japan) Vol.