F. F. Alkaff, R. A. Nugraha, M. Jonatan, and S. wati, “Role of Bariatric Surgery for Reducing Glycated Hemoglobin (Hba1c) in Type 2 Diabetes Mellitus Compared to Current Medicaments Therapy”, BHSJ, vol. 1, no. 1, pp. 61–68, May 2018.