Hidayati, A.N. et al. 2018. Relationship between physical activity and hyperglycemia in kyai and teachers in Islamic boarding school in Yogyakarta. Jurnal Gizi dan Dietetik Indonesia (Indonesian Journal of Nutrition and Dietetics). 5, 3 (Mar. 2018), 98–105. DOI:https://doi.org/10.21927/ijnd.2017.5(3).98-105.