Bogar, Analysa, Helena Tangkilisan, and Hesti Lestari. “Comparison of 25-Hydroxyvitamin D Levels in Exclusively and Non-Exclusively Breastfed Infants”. Paediatrica Indonesiana 52, no. 3 (June 30, 2012): 157-60. Accessed May 3, 2024. https://paediatricaindonesiana.org/index.php/paediatrica-indonesiana/article/view/383.