Comments on: Beyond Testing (June 2009) /websites/expertvoices/archives/2885 Opinions from the PI of ChemEd DL and others; news from the world of chemical education. Fri, 08 Mar 2013 17:38:08 +0000 http://wordpress.org/?v=2.3.3 By: Drilling additives /websites/expertvoices/archives/2885#comment-1559 Drilling additives Wed, 15 Dec 2010 07:29:13 +0000 /websites/expertvoices/archives/2885#comment-1559 Thanks for the sharing of such information we will pass it on to our readers. This is a great reading. Thanks for the sharing of such information we will pass it on to our readers.

This is a great reading.

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