A most excellent detailed and instructive article by Walter Last
https://health-science-spirit.com/urine.html
Your-Own-Perfect-Medicine- by Martha Christy with Testimonials
Urine therapy for teeth
https://www.healingteethnaturally.com/urine-therapy-teeth-gum-problems.html
Urine Therapy by Flora Peschek-Böhmer
The Water of Life – A Treatise on Urine Therapy by John W. Armstrong
The Golden Fountain by Coen van der Kroon