MOHAMMAD ROFI’I; YANTO, F. Design and Building of A Portable Spirometer Based on Arduino Uno. SAINTEKBU, [S. l.], v. 15, n. 01, p. 43–51, 2023. Disponível em: https://ejournal.unwaha.ac.id/index.php/saintek/article/view/3261. Acesso em: 5 dec. 2025.