Areekul, SBoonyananta, CMatrakul, DChantachum, Y2009-05-272009-05-271972-04-01Areekul S, Boonyananta C, Matrakul D, Chantachum Y. Determination of vitamin B 12 in fish sauce in Thailand. Journal of the Medical Association of Thailand. 1972 Apr; 55(4): 243-7http://imsear.searo.who.int/handle/123456789/45790Chotmaihet Thangphaet.engFish Products --analysisFood AnalysisThailandVitamin B 12 --analysisDetermination of vitamin B 12 in fish sauce in Thailand.Journal Article