Mayasari, Ni Made Elva, et al. “Electrocardiogram Abnormality and Distance Covered During Six Minute Walk Test on Diabetes Mellitus Type 2”. Qanun Medika - Medical Journal Faculty of Medicine Muhammadiyah Surabaya, vol. 4, no. 2, July 2020, pp. 203-8, doi:10.30651/jqm.v4i2.3598.