Roj Bash Kurdistan

I am still struggling to learn Sorani Kurdish. It is difficult since there aren't many people who speak that are online a lot. I have a native speaker who helps me when she has time on skype but....

So, my question is what is the absolute BEST dictionary available for learning Sorani Kurdish? (using Arabic script NOT latin letters!) I found this link
http://ferheng.org/en/?Printed_Dictionaries
but I'm not sure what is the authoritative text in both areas. In that link or elsewhere?... Also I don't see almost any Sorani dictionaries on Amazon so I'm not sure how I can purchase a dictionary anyway. English-to-Sorani AND Sorani-to-English. Thanks!

as for now i am using one dictionary from internet, which is:

http://www.fas.harvard.edu/~iranian/Sor ... bulary.pdf

its more or less ok, although i couldnt find many words, some of them might be written a bit different then commonly used. but i consider this one to be the best of online dictionaries, even if still not perfect.

I am referring to paper dictionaries more so really not solely online dictionaries since paper dictionaries are almost always much better than online ones. At least for Sorani anyway. Any ideas?

try "Nicholas Awde: Kurdish Sorani dictionary and phrasebook",it's small,but it is the only one i've learned something from the other ones are in norwegian:P