Adida, Fiony, Pandiaman Pandia, Andika Pradana, Amira P. Tarigan, Taufik Ashar, Amos Dangana, and Aditya S. Listyoko. “Effectiveness of Smartphone Application in Increasing Knowledge on COPD and Its Non-Pharmacological Management in COPD Patients”. Narra J 3, no. 3 (December 29, 2023): e412. Accessed August 16, 2025. https://narraj.org/main/article/view/412.