Kietduriyakul, V., Thanesakoul, O. and Chandumpi, P. (2016) “COMPARISON OF REFRACTOMETRY TO COMMERCIAL’S DUMAS’S AND GORNAL ET AL ’S BIURET METHODS”, Journal of Associated Medical Sciences, 17(2), p. 93. available at: https://he01.tci-thaijo.org/index.php/bulletinAMS/article/view/61979 (accessed: 14 September 2026).