Jufri N, Nurmaladewi N, Nirmala F. The Effects of Vitamin D Supplementation on Serum Levels of 25 (OH) D, Serum Calcium, and Bone Density in Adolescent: A Literature Review. AMNT [Internet]. 2021 Jun. 21 [cited 2024 Dec. 30];5(2):180-95. Available from: https://e-journal.unair.ac.id/AMNT/article/view/20140