KKokkyō no hitobitoKokkyō no hitobitode Yoshihiko YamadaMateriasRyōdoShimaNihon-Taigai kankeiBoundariesNational TerritoryForeign relationsEdiciones (1)Kokkyō no hitobito (2014)Shinchōsha · japonés · ISBN 9784106037542Más obras de Yoshihiko YamadaNNihon no kokkyōNihon no kokkyō2005KKaiyō shigen taikoku Nihon wa "umi" kara saisei dekiruKaiyō shigen taikoku Nihon wa "umi" kara saisei dekiruOOne piece shōrigakuOne piece shōrigaku
KKaiyō shigen taikoku Nihon wa "umi" kara saisei dekiruKaiyō shigen taikoku Nihon wa "umi" kara saisei dekiru