Default [Q] Need contacts.apk for Sony Tablet S 4.0.3 R5a

Hi. I uninstalled the Contacts app on my Sony Tablet S 4.0.3 R5a. Now Google Voice does not work any more--it gives the "android.process.acore has stopped" error message. Where can I get the contacts.apk file for 4.0.3 R5a? I checked in the system/app folder and could not find it there--of course, it has been uninstalled. Could someone kindly upload the contacts.apk in his/her sony tablet s 4.0.3 R5a? Thanks!