Koh, A., A. Negi, M. L. Yap, P. L. F. Koh, K. P. Goh, and C. F. Sum. “Development and Validation of a Carbohydrate and Insulin Dosing Knowledge Quiz in Adults With Diabetes Mellitus”. Journal of the ASEAN Federation of Endocrine Societies, vol. 30, no. 2, Nov. 2015, p. 129, https://www.asean-endocrinejournal.org/index.php/JAFES/article/view/232.