1. Primary Megalo-Ureter
2. M. Campbell(1951 ), "Clinical Paediartic Urology ." Philadelphia,W. B. Saunders and Co., Pages95 and95 .
3. Megaloureter: The Importance of the Uretero-Vesical Valve
4. T. T. Higgings, D. I. Williams, and D. F. E. Nash(1951 ), "The Urology of Childhood ," London, Butterworth and Co. Ltd., pages138 and138 .