Puteri, Saskia Oktaviani, Ratnawati Ratnawati, and Nura Eky Vikawati. “Relationship Between Age, Exercise Habits, Cigarette Smoke Duration Exposure, and Lung Vital Capacity in Passive Smokers”. Majalah Kedokteran Bandung 55, no. 2 (June 30, 2023): 65–69. Accessed July 7, 2026. https://stable.unpadmedjournals.id/index.php/mkb/article/view/2169.