Hardiman, S. L., I. N. Bernanthus, P. K. Rustati, and E. Susiyanti. “Waist Circumference As a Predictor for Blood Glucose Levels in Adults”. Universa Medicina, vol. 28, no. 2, Aug. 2009, pp. 77-82, https://univmed.org/ejurnal/index.php/medicina/article/view/232.