Ahmad, H, M Justine, Z Othman, V Mohan, and FT Mirza. “The Outcomes of Short Term Inspiratory Muscle Training (IMT) Combined With Chest Physiotherapy in Hospitalized COPD Patients”. Bangladesh Journal of Medical Science 12, no. 4 (October 26, 2013): 398–404. Accessed December 24, 2025. https://www.banglajol.info/index.php/BJMS/article/view/13302.