A. Lorensia, R. V. Suryadinata, N. L. Istiqomah, dan I. N. Y. Diputra, “Aktivitas Fisik dan Risiko PPOK pada Pengemudi Becak di Surabaya: Physical Activities and COPD Risks in Pedicab Drivers in Surabaya”, J. Sains. Kes, vol. 3, no. 5, hlm. 706–714, Nov 2024, Diakses: Sep 19, 2026. Tersedia pada: https://jsk.ff.unmul.ac.id/index.php/JSK/article/view/492