P. P. Ratha, Niken Puruhita, Aryu Candra, Siti Fatimah Muis, and Enny Probosari, “Early Parenteral Nutrition (PN) As A Mortality Risk Factor in COVID-19 Patients at the Intensive Care Unit (ICU) of RSUP Dr. Kariadi”, WMJ, vol. 10, no. 2, pp. 56–69, Nov. 2025.