Sinuraya, B., S. Sriyono, N. K. A. Armini, D. A. Santosa, and J. R. Acob. “Sleep Problems in Patients With Diabetes Mellitus During the Pandemic COVID-19: A Systematic Review”. International Journal of Health Sciences, vol. 6, no. S2, June 2022, pp. 14624-35, doi:10.53730/ijhs.v6nS2.8846.