Sanigan Thongsawad. 2005. Prevalence survey of norovirus in Pacific white shrimp (Litopenaeus vannamei) in Thailand. Field of Study Veterinary Public Health, Chiang Mai University;
Sanigan Thongsawad. (2005) Prevalence survey of norovirus in Pacific white shrimp (Litopenaeus vannamei) in Thailand . Chiang Mai University/Chiang Mai.
Sanigan Thongsawad. Prevalence survey of norovirus in Pacific white shrimp (Litopenaeus vannamei) in Thailand. . Chiang Mai:Chiang Mai University, 2005.
Sanigan Thongsawad. (2005) Prevalence survey of norovirus in Pacific white shrimp (Litopenaeus vannamei) in Thailand . Chiang Mai University/Chiang Mai.