S. TAMILSELVI, and K P KANNAN. 2014. “ATOMIC ABSORPTION SPECTROSCOPY FOR QUANTITATIVE EVALUATION OF HEAVY METALS AND TRACE ELEMENTS IN DARUHARIDRA: A RAPID AND COMPREHENSIVE RESTORATION SCHEME FOR QUALITY ASSURANCE OF HERBAL PLANTS FROM MARKET PLACE”. International Journal of Pharma and Bio Sciences 5 (4):825-29. https://ijpbs.net/index.php/journal/article/view/3819.