tag:blogger.com,1999:blog-20612393.post7520057939224222330..comments2012-01-02T22:14:48.367+07:00Comments on Surachart Opun's Blog: SQL and Relational Theory, 2nd Edition by C.J. Dat...Suracharthttp://www.blogger.com/profile/05646896104906516714noreply@blogger.comBlogger0125