Hendrik Probo Sasongko, and Febrika Devi Nanda. “The Effect of Lighting on Sleep Quality in The Elderly in Sidodadi Village”. International Journal of Medicine and Health 4, no. 3 (September 30, 2025): 50–56. Accessed June 9, 2026. https://journal.amikveteran.ac.id/index.php/ijmh/article/view/4783.