A. H. M. . Afzalul Haque, M. R. . Abedin, M. F. z Zaman, F. K. . Shoma, A. T. . Bhuiyan, and H. K. . Kollol, “Role of Incentive Spirometry On Management of Postoperative Pulmonary Complications in Elderly Urology Patients”, J Dhaka Med Coll, vol. 31, no. 1, pp. 51–55, May 2023.