Aryadi, I Putu Hendri, et al. “Pranayama Yoga and Music Therapy: A Holistic Rehabilitation Therapy Combination for Chronic Obstructive Pulmonary Disease Patient”. Jurnal Ilmu Kesehatan Masyarakat, vol. 11, no. 3, Nov. 2020, pp. 185-98, doi:10.26553/jikm.2020.11.3.185-198.