Nawangasri, A.P., Budiono, B., Bakhtiar, A., Sutikno, B., Suryaningrum, E.M. and Damayanti, D. 2022. The Relationship between Physical Activity and FEV1/FVC in Asthmatics. Surabaya Physical Medicine and Rehabilitation Journal. 4, 1 (Feb. 2022), 1–6. DOI:https://doi.org/10.20473/spmrj.v4i1.24726.