MS4 lesson pollution

[foued_18]

المشاركة الأصلية كتبت بواسطة Mr.Samir Bounab

salam

here is the lesson about

pollution for the MS4 level


https://www.dropbox.com/s/9dnbnbfa3n...ile%201%29.pdf


any comments are welcome

Thank you very much Sir samir you're really a helpful man may God bless you But the thing is I couln't download this document would you mind giving us another link .4shared if you want .
This lesson an the lesson about letter of complaint .and thank you very much .HAVE A NICE TIME