;  Hasan N. Erten   Dean Faculty of Science    Director Center for Environmental Sciences (CES)    Professor Chemistry (CHEM)   Office Extension  1820  Office Direct  2664380  E-Mail    Office Building  SA Science  Office Room #  SA-231 | Main Menu | Bilkent University Main Page |   Last regenerated automatically on December 1, 2008 by OTD - Online Telephone Directory Software.