Retnaningtyas, Lucia, Subijanto Sudarmo, Ariyanto Harsono, and Sylviati Damanik. “Effect of Probiotic on the Fecal SlgA Level in Preterm Infants (A Randomized Double-Blind Placebo Control Study)”. Paediatrica Indonesiana 48, no. 4 (August 31, 2008): 246-52. Accessed November 26, 2024. https://paediatricaindonesiana.org/index.php/paediatrica-indonesiana/article/view/576.