WAHDANA, WAHYU, et al. “DIABETES MELITUS BECOME A HEALING DISEASE IN COVID-19 PATIENTS (SYSTEMATIC REVIEW)”. NURSING UPDATE : Jurnal Ilmiah Ilmu Keperawatan P-ISSN : 2085-5931 E-ISSN : 2623-2871, vol. 12, no. 2, Apr. 2021, pp. 75-97, doi:10.36089/nu.v12i2.334.