Herniyatun, H, Nur Ngaisah, and N Nurlaila. “Faktor Risiko Penularan Covid-19 Pada Perawat RS PKU Muhammadiyah Sruweng”. Prosiding University Research Colloquium (January 4, 2023): 771–778. Accessed September 17, 2024. https://repository.urecol.org/index.php/proceeding/article/view/2500.