Rashmi Tiwari <br/><br/>
A chemical and microbiological screening of dhavashvakarnadi yoga, kataka bija and bisagranthi in purification of water for potable standard  guidence of dr k v asha /v p s v ayurveda college 

 - Kottakkal  V p s v ayurveda college, kottakkal  2012 
 - 166  AGA08 
<br/><br/><label>Dewey Class. No.: </label>AGA  / RAS/CH