Muhammad Bagas Saputra, et al. “Analysis Adequate Between Vitamin D Intake and Dementia in the Elderly in Community Health Center Work Areas”. Health Harmony: International Journal of Medicine, Health and Physiotherapy, vol. 1, no. 3, June 2024, pp. 13-23, https://health.ifrel.org/index.php/HealthHarmony/article/view/13.