Looking for a book: American Channel

We have some \students using the book “American Channel” 960-379-633-6 which we bought in Taiwan a couple of years ago. But we CANNOT find anybody supplying this book at all here. The only place seems to be in Greece.

Does anybody know the publisher/distributor of MM publications in Taiwan.

I contacted the company themselves, but no answer via email at all. We need one set of books for this class.

Any help appreciated!
Kenneth