Sueyunyongsiri, P. . “A simple estimation of glomerular filtration rate in diabetes patients from serum creatinine”. Maharat Nakhon Ratchasima Hospital Journal, vol. 39, no. 3, Aug. 2024, pp. 165-72, https://he04.tci-thaijo.org/index.php/MNRHJ/article/view/1522.