1. Heyne, K., Useful Plants in Indonesia 2nd edition. Bogor: Forestry Research and Development Agency, Ministry of Forestry, Republic of Indonesia; 1987(in Indonesia).
2. Bourton J, Van OE, and Ensbey. R (2010), Water Hyacinth : Weed of National Significance; 2010 http://www.dpi.nsw.gov.au/agriculture/pests-weeds/weeds/profiles/water-hyacinth; 2010 accessed on 28 August 2014.
3. Amanda, Rawa Pening Will Be Free From Water Hyacinth in 2030, http://www.regional.kompas.com/read/2011/08/03/19314388/2030.Rawa.Pening.Bebas.Eceng.Gondok; 2011 accessed on 25 Aug. 2014. (in Indonesia).
4. Duke J. Eichhornia crassipes, in Handbook of Energy Crops. Available only online. An excellent source of information on numerous plants; 1983.
5. Pasaribu, G. dan Sahwalita, Rehabilitation of Forest Resources and Conservation, Padang Indonesia; Main Papers on Exposure Research Results; 2006.(in Indonesia).