They copy anything. They don't have a legal concept of copyright in North Korea, so why wouldn't they?

And their CS majors supposedly have monitored but uncensored access to general internet. I'm sure they know that the A in ANSI means American.

At least it covers UML. That'll set them back a few decades.

The 'A' is short for Juche

Yes. There is a huge difference between normal population and party or military members. The elites have access to education.

> I would assume they copy Chinese textbooks as it's the only border.

Could be from Hong Kong when they used sterling?

They share a border with Russia as well.