Pangsuk, P. ., A. . Sookpool, C. . Kingmala, W. . Wangmun, and T. . Yeunyow. “The Effects of the Innovation ‘3-Color Spoon’ on Knowledge and Dietary Consumption Among Patients With Type 2 Diabetes Mellitus and Poor Glycemic Control”. Nursing Journal of The Ministry of Public Health, vol. 30, no. 1, Apr. 2020, pp. 57-68, https://he02.tci-thaijo.org/index.php/tnaph/article/view/241492.