S. M. Khan, S. Akhter, S. G. Kibria, I. A. Shamim, and S. A. Khanam, “Comparison of Shock Wave Parameters of in Situ ESWL & ESWL After Push Back for Upper Ureteric Calculi”, Chatt Maa Shi Hosp Med Coll J, vol. 16, no. 1, pp. 7–10, Dec. 2017.