alak
Published on 06/26/11 at 14:03
I know his site for years SONELEC = indispensable, ultra clear ...
he knows almost simple to complex problems, great!
He was very helpful and saved me putting more than once!
book to buy without hesitation.
thank you again for chimimic
he knows almost simple to complex problems, great!
He was very helpful and saved me putting more than once!
book to buy without hesitation.
thank you again for chimimic