Looking For Beef Jerkey in İstanbul (Istanbul)

Hello All
İ am not actually an American, nor i have ever lived there but somehow i get used to the taste in Paris. i used to buy it at Grand epicerie in Paris but now that i am here in İstanbul, i am looking for it here too. İ have looked every imaginable place in istanbul and i couldn't find it. Since there are enough Americans around here, some of you might know where i find it.
İ know it is not a necessity but i feel like i have spent enough energy and time to find it and i couldn't so you are my last hope.
Thanks for everyone who could guide me through to the right spot.