D. Diah, C. Prahasanti, and R. P. Rahayu, “Light Emitting Diodes as a Phototherapy Light Source for Increasing Vitamin D: A Review: http://www.doi.org/10.26538/tjnpr/v8i1.4”, TJNPR, vol. 8, no. 1, pp. 5746–5751, Feb. 2024, Accessed: Nov. 24, 2024. [Online]. Available: https://tjnpr.org/index.php/home/article/view/3368