DWC (2008). A guide to nature’s diversity in Horton Plains National Park. Green, M.J.B. (ed.), De Alwis, S.M.D.A.U., Dayawansa, P.N., How, R., Singhakumara, B. M. P., Weerakoon, D. and Wijesinghe, M. R. Department of Wildlife Conservation, Ministry of Environment and Natural Resources, Colombo, 47 pp. ISBN 978-955-1580-30-08