Hewavitharana, T.2015-02-272015-02-272013Hewavithana T,"Minerals and Opium content in Rasaushadha Mentioned in Vatika Prakaranaya" 1stInternational Conference on Unani,Ayurveda,Siddha and Traditional Medicine 2013 December in Institute of Indigenous Medicinehttp://repository.kln.ac.lk/handle/123456789/5455enVatika PrakaranayaOpiumMineralsArticle