Ogasawara, Naruaki. “A Big Data to Discovery: Network Analysis of COPD Research Collaborations from 2000 to 2023”. Jurnal Respirasi 11, no. 3 (September 30, 2025): 276–284. Accessed October 4, 2025. https://e-journal.unair.ac.id/JR/article/view/66314.