Gunawan, Lucia, and Ratna Herawati. “Uji Kadar Anti-HBs Pada Balita Penerima Imunisasi Dasar”. Biomedika 10, no. 2 (March 5, 2018): 1-10. Accessed April 25, 2024. http://ejurnal.setiabudi.ac.id/ojs/index.php/biomedika/article/view/269.