1. 1993. Fish section. In Red Data Book of Viet Nam (in Vietnamese). Hanoi; 238–316.
2. 1994. Government of the United Kingdom's draft proposal to transfer Probarbus jullieni from appendix I to appendix II. Convention on International Trade in Endangered Species of Wild Fauna and Flora, Report Prepared for 9th Conference of the Parties, Fort Lauderdale, USA, 7–18 November 1994.
3. 1994. Freshwater Fisheries, with Special Reference to Probarbus jullieni and Probarbus labeamajor in Southern Lao PDR and North-eastern Cambodia and the Fish Trade Between North-eastern Cambodia, Southern Lao PDR, and Thailand. TRAFFIC SEA: Pakse, Lao PDR.
4. 2001. Towards sustainable co-management of Mekong River aquatic resources: the experience of Siphandone wetlands. In Siphandone Wetlands, (ed.). CESVI: Bergamo, Italy;89–111.
5. Irrawaddy dolphin Orcaella brevirostris in the Cambodian Mekong River: an initial survey