Chandrashekhar, K. B.; Das, U. N. & Mishra, Sujata <br/><br/>
Engineering chemistry  

 - Scitech publications pvt. ltd.  Chennai  2009 
 - 253 
<br/><br/>
<br/><br/><br/>E 
<br/><br/><label>Universal Decimal Class. No.: </label>660.2 Cha