SITI MARWIYAH; DEVI PUTRI SALVIRA. EFEKTIVITAS KEBIJAKAN PEMBERLAKUAN PEMBATASAN KEGIATAN MASYARAKAT (PPKM) DALAM PERKEMBANGAN WABAH VIRUS COVID-19 DI KOTA PROBOLINGGO. Journal of Innovation Research and Knowledge, [S. l.], v. 1, n. 7, p. 441–444, 2021. DOI: 10.53625/jirk.v1i7.819. Disponível em: https://mail.bajangjournal.com/index.php/JIRK/article/view/819. Acesso em: 5 jul. 2025.