NGUYEN THỊ THANG; TRAN NGOC THAN; LE THUY PHUONG; NGUYEN THI THANH VAN; LUONG THI KHUYEN. THE SITUATION OF IMPLEMENTATION OF THE NATIONAL IMMUNIZATION INFORMATION MANAGEMENT SYSTEM IN PHU YEN PROVINCE IN 2021. JOURNAL OF CONTROL VACCINES AND BIOLOGICALS, [S. l.], v. 3, n. 3, p. 42–49, 2023. DOI: 10.56086/jcvb.v3i3.104. Disponível em: https://jcvb.vn/index.php/jcvb/article/view/104. Acesso em: 21 tháng 2. 2025.