L.S.G. Wijayasinghe, D.M.H.D.B. Dissanayake, A.I.S. Priyadarshan, P.K. Perera.A comparative chromatography study of different tel spp. (Ipomoea spp.) in Kuliyapitiya region, Kurunegala district Sri Lanka.2nd International Conference on Ayurveda, Unani, Siddha and Traditional Medicine and Ayu Expo -2014, Institute of Indigenous Medicine, University of Colombo, Rajagiriya, Sri Lanka, December, 16-18, 2014 (http://iim.cmb.ac.lk/icaust2014/)