3Howeler R H,Nguyen D,Vongkasem W. Farmer participatory selection of vetiver grass as the most effective way to control erosion in cassava-based cropping systems in Vietnam and Thailand[A].Proceedings of the First International Conference on VETIVER: A MIRACLE GRASS[C]. Bangkok, Thailand: Office of the Royal Development Projects Board, 1996. 259-272.
4Grimshaw R G.Vetiver and the environment-the future[A].Proceedings of the Second International Conference on Vetiver: VETIVER AND THE ENVIRONMENT[C]. Bangkok, Thailand: Office of the Royal Development Projects Board, The Chaipattana Foundation, 2000.467-470.
5Grimshaw R G.Vetiver Grass-A World Technology and its Impact on Water Reviewer[A].Proceedings-The Third International Conference on Vetiver and Exhibition[C]. Guangzhou:China Agriculture Press,2003. 1-10.