Sumeru, Annas, and Dian Mustikasari. “The Use of Self-Monitoring Urine Chart (PURI) in Older Adults to Prevent Dehydration: A Literature Review”. Journal of Bionursing 2, no. 1 (January 31, 2020): 1-8. Accessed May 5, 2024. http://bionursing.fikes.unsoed.ac.id/bion/index.php/bionursing/article/view/38.