Wongsugum, L., N. Suwankrughasna, and K. Panas-ampol. “SHEEP CELL AGGLUTINATION TEST (SCAT) FOR THE DETECTION OF RHEUMATOID FACTOR”. Journal of Associated Medical Sciences, vol. 8, no. 1, June 2016, p. 1, https://he01.tci-thaijo.org/index.php/bulletinAMS/article/view/60813.