Should I include a paper published in a non English language in my CV?
If you have published a paper, you should include it in your CV.  It does not matter what language the paper is in.

For the aid of people who do not speak the language, however, you may wish to include a translation of the paper title as a note, e.g.,:


  J. Caesar, Commentarii de Bello Gallico [Commentaries on the Gallic war], Caesar House Press, 49 BC, (in Latin)