"Urinary Retention". National Institute of Diabetes and Digestive and Kidney Diseases. Aug 2014. Diarsipkan dari versi aslinya tanggal 4 October 2017. Diakses tanggal 24 October 2017.
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"Urinary Retention". National Institute of Diabetes and Digestive and Kidney Diseases. Aug 2014. Diarsipkan dari versi aslinya tanggal 4 October 2017. Diakses tanggal 24 October 2017.