1. Choomkasien P. Leptospirosis. In: Wattanasri S, editor. Summary of disease surveillance report 1996, Division of Epidemiology, Office of Permanent Secretary, Ministry of Public Health. Bangkok: Veteran Organization Press; 1997. p. 196–205.
2. Choomkasien P. Leptospirosis. In: Wattanasri S, editor. Summary of disease surveillance report 1997, Division of Epidemiology, Office of Permanent Secretary, Ministry of Public Health. Bangkok: Veteran Organization Press; 1998. p. 198–206.
3. Choomkasien P. Leptospirosis. In: Wattanasri S, editor. Summary of disease surveillance report 1998, Division of Epidemiology, Office of Permanent Secretary, Ministry of Public Health. Bangkok: Veteran Organization Press; 1999. p 205–13.
4. Kingnate D. Natural history of Leptospirosis. In: Chokewiwat W, editor. Leptospirosis. Banghok: Agricultural Cooperation Society of Thailand Press, Ltd.; 1999. p. 7–23.
5. Risk factors associated with leptospirosis infection in northeastern Thailand, 1998.;Waraluk;Am J Trop Med Hyg,2000