Pratami, R.D. et al. 2025. The Administration of Oral Nutritional Supplementation (ONS) in Chronic Obstructive Pulmonary Disease (COPD) Patients: A Systematic Review. Indonesian Journal of Global Health Research. 7, 6 (Oct. 2025), 799–806. DOI:https://doi.org/10.37287/ijghr.v7i6.639.