Zamaa, M. S., R. . M, and S. Nurhadijah. “Early Detection of Peripheral Arterial Disease (PAD) by Ankle Brachial Index (ABI) Examination in Type 2 Diabetes Mellitus Patients”. Jurnal Ilmiah Permas: Jurnal Ilmiah STIKES Kendal, vol. 12, no. 2, Apr. 2022, pp. 253-8, http://journal2.stikeskendal.ac.id/index.php/PSKM/article/view/184.