SOSIALISASI TENTANG PENERAPAN PROTOKOL KESEHATAN PENCEGAHAN COVID-19 DI KABUPATEN BATU BARA PROVINSI SUMATERA UTARA. JURNAL PENGMAS KESTRA (JPK), [S. l.], v. 1, n. 2, p. 227–230, 2021. DOI: 10.35451/jpk.v1i1.711. Disponível em: https://ejournal.medistra.ac.id/index.php/JPK/article/view/711. Acesso em: 30 nov. 2025.