Healthline. https://www.healthline.com/health/urethritis
Diakses pada 19 Juni 2020WebMD. https://www.webmd.com/a-to-z-guides/urethritis-symptoms-causes-treatments#:~:text=Urethritis%20is%20inflammation%20of%20the,due%20to%20infection%20by%20bacteria.
Diakses pada 19 Juni 2020Health Harvard. https://www.health.harvard.edu/a_to_z/urethritis-a-to-z
Diakses pada 19 Juni 2020