<https://www.antaranews.com/berita/2052334/sertifikat-vaksinasi-covid-19-jadi-instrumen-baru-protokol-kesehatan>
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"Sertifikat vaksinasi COVID-19 jadi instrumen baru protokol kesehatan"
<https://www.antaranews.com/berita/2052334/sertifikat-vaksinasi-covid-19-jadi-instrumen-baru-protokol-kesehatan>