Adrian, Ronny, et al. “The Association of Bladder Wall Thickness With Severity of Symptoms in Patients With Overactive Bladder: HubunganantaraKetebalanDindingVesikaUrinaridenganKeparahanGejalapadaPasienOveractiveBladder”. Indonesian Journal of Obstetrics and Gynecology, vol. 5, no. 4, Dec. 2017, pp. 219-24, doi:10.32771/inajog.v5i4.564.