Nartha, K.P.P.P. et al. 2022. Factors Related to Outcome and Length of Hospital Stay for Elderly Patients with COVID-19 at Mataram University Hospital in 2020-2021 . Jurnal Biologi Tropis. 22, 4 (Nov. 2022), 1115–1121. DOI:https://doi.org/10.29303/jbt.v22i4.4136.