1. ARS, National Genetic Resources Program, Germplasm Resources Information Network — (GRIN), National Germplasm Resources Laboratory, Beltsville, Maryland, USA;Grin Database, USDA,2005
2. Indian medicinal plants;Kiritikar,1999
3. The botany of mangroves;Tomlinson,1986
4. ASEAN Regional Centre for Biodiversity Conservation, the Philippines;ARCBC Database,2004
5. USDA, ARS, Beltsville Agricultural Research Center, Beltsville, Maryland, USA;Phytochemical and Ethnobotanical Databases,2005