Purchasing untranslated Manga in the US

I'm in a Japanese college class right now, and was hoping to get ahold of a specific untranslated manga.  Namely, Azumanga Daioh.  Anyway, my searches have all come up in vain, and I cannot figure out where to purchase all four of these untranslated volumes online.  Any help would be incrediably appreciated!  Thanks!

I remember an online site before my hdd crashed :(.  Sadly I cant get the bookmark.  Spins up but nothing can read it.  It started with an S i think and ended with books?  sausagebooks? something like that.

Amazon.jp is also avaiable in english. You should find something interesting there.

Thank you anonymous person!  I owe ya one.  The site is http://www.sasugabooks.com

After checking around 20 places, they are the only place that had them.  Thank you very, very much sir!

No prob, lol.  Sorry I couldn't remember the name correctly.  I just got terrible memory :(.

zomg u read azumanga daioh zomg