Rizkia, Chaula Putri. “Vitamin D and Its Role in Modulating Immune System: A Narrative Literature Review”. Open Access Indonesian Journal of Medical Reviews 3, no. 1 (March 2, 2023): 327-332. Accessed October 14, 2025. https://www.hmpublisher.com/index.php/OAIJMR/article/view/282.