If you want to see a list of all my books, by series, in order click here.
I've included a web page when I know it. Often I can't understand the page, but I assume if you're interested in books in that language, you can. Most publishers will have places to sign up to be informed about new books. A google search on a title will often throw up places where it can be bought.
If you know of sites for readers in any of these languages, please let me know and I'll include them here.