Songsiri, Sichon, Sanit Makonkawkeyoon, and Preecha Homchampa. “DETECTION OF LEPTOSPIRA ANTIBODIES BY PASSIVE HEMAGGLUTINATION TEST”. Journal of Associated Medical Sciences 14, no. 1 (July 6, 2016): 1. accessed September 11, 2026. https://he01.tci-thaijo.org/index.php/bulletinAMS/article/view/61912.