Gratian Vas <br/><br/>
Pareekshanangal:  rasavasthukkal / 
Gratian Vas; translated by Jeeja Venugopal 
 - Kottayam :  D C Books,  2008. 
<br/><br/><br/>In Malayalam 
<br/><br/><label>Subjects--Index Terms: </label>Chemistry Experiment In Chemistry