Mustapha, F. I., R. A. Ghani, A. Tan, W. M. I. Wan Mohamed, and W. C. Siew Swee. “A Summary of the Malaysian Clinical Practice Guidelines: Management of Type 2 Diabetes Mellitus (4th Edition) 2009”. Journal of the ASEAN Federation of Endocrine Societies, vol. 26, no. 1, May 2014, p. 20, https://www.asean-endocrinejournal.org/index.php/JAFES/article/view/97.