Alam, A K M K, M F H Siddique, M S Islam, A T M Amanullah, M E Haque, M M Uddin, S A Khan, M F Islam, A K M A Islam, and M A Salam. 2012. “Percutaneous Nephrolithotomy With Multiple Tracts: Comparison of Morbidity With Singletract Procedure”. Bangladesh Journal of Urology 13 (1):21-33. https://banglajol.info/index.php/BJU/article/view/11096.