Thanks alijsh! I agree with you heheh
Looking for materials to keep studying farsi, I found two,
"persan sans peine", I read very good commentaries about it, but is very tough for me to get(I would had to import it)
And the "An introduction to persian", but as a introduction book, seems to focus on the same things that I already studied.
Quite disappoint to find only those materials, but at least there are still lots of sites to study it, althought I don't like studying in the computer..