Yudivaniel Zihono, Hany Yusmaini, Uswatun Hasanah, Erna Harfiani, Md Ikhsan Mokoagow, and Dicky Budiman. “Metformin Effectiveness in Reducing Mortality Among Covid-19 Patients With Type 2 Diabetes Mellitus at a Tertiary Hospital in Indonesia”. Folia Medica Indonesiana 59, no. 3 (September 10, 2023): 267–273. Accessed April 5, 2025. https://e-journal.unair.ac.id/FMI/article/view/46944.