TY - BOOK AU - Rashmi Tiwari TI - 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 U1 - AGA PY - 2012/// CY - Kottakkal PB - V p s v ayurveda college, kottakkal ER -