Error in a Vietnamese PDF or Audio File? Let us know here

We proof read everything several times, but sometimes we still missed something. If you see anything thats wrong, please let us know the pdf name, the number of the slide and whatever needs to be fixed.
We will get on it straight away and let you know once it has been updated. Please also @Rosie-Cao
Thanks a lot for the help :lexthelion_diagonal_logo: