De Silva R.H.S.K., N.D.N. Jayawardhane, K.H.H.V.S.S.N. Murthy, J.S.Tripathi,   “Evaluation of Total Economic Value of Ayurvedic Medicine with Reference to Environmental Valuation Techniques” – Abstract book page, Published and Presented in International Conference on Recent Advances in Safety & Efficacy of Ayurvedic Formulation, Department of Rasa Shastra, Faculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu University,Varanasi, India on 24th -25th February, 2011