Bhangu, G. S., R. Singh, D. Bansal, and B. S. Bajwa. “Etiological Study of Urinary Bladder Carcinoma in Patients Presenting to Tertiary Care Centre”. International Surgery Journal, vol. 8, no. 1, Dec. 2020, pp. 43-47, doi:10.18203/2349-2902.isj20205664.