Hello, I'm Da Yeon Ko from Hana academy seoul, in Korea. I amd really proud to introduce myself to be one of the member of the Dokdo Cyber press, a non-governmental and voluntary organization with the mandate to provide corret information about Korea o the international community, including text book publishers.
Also thank you to giving us the information.
But I think there is one thing that wrong written on this website.
It maybe just a mere expression mistake, but I think it's right to change something that is worng. I humbly as you to change the word "Sea of Japan" to the "East Sea' and if you don't mind, give me a reply email. (kkkdy91@naver.com) Thank you.