http://www.ezran.org/blog Ezra -ez- Nugroho's blog Sun, 06 Nov 2011 03:17:19 +0000 en hourly 1 http://wordpress.org/?v=3.2.1 http://www.ezran.org/blog/2009/03/problem-with-open-textbooks-they-are-free/ http://www.ezran.org/blog/2009/03/problem-with-open-textbooks-they-are-free/#comments Wed, 01 Apr 2009 02:48:00 +0000 ezran http://www.ezran.org/blog/?p=233 http://www.ezran.org/blog/2009/03/problem-with-open-textbooks-they-are-free/feed/ 3