Widyastuti, M., Ainul Mardiah Sari and Rahmawati 2026. The effectiveness of Chest Physiotheraphy on Secretory Discharge in Children with Acute Respiratory Infection (ARI) at Ambacang Health Center Padang, Indonesia. RADINKA JOURNAL OF HEALTH SCIENCE. 3, 3 (Feb. 2026), 529–537. DOI:https://doi.org/10.56778/rjhs.v3i3.653.