1. Candrianto. (2020). Pengenalan Keselamatan dan Kesehatan Kerja. Batu: Literasi Nusantara.
2. ECDC. (2020). Covid-19 Clusters and Outbreak in Occupational Settings in the EU/EEA and the UK. Retrieved from https://www.ecdc.europa.eu/sites/default/files/documents/COVID-19-in-occupational-settings.pdf
3. European Centre for Disease Prevention and Control. (2020). Outbreak of Novel Coronavirus Disease 2019 (COVID-19): Increased Transmission Globally - Fifth Updates. Stockholm: European Centre for Disease Prevention and Control.
4. Febriyanti, R. (2020). Penyuluhan Sosial: Membaca Konteks dan Memberdayakan Masyarakat. Bandung: Lekkas Publisher.
5. Hasibuan, A., Purba, B., Mahyuddin, I. M., Sianturi, E., Armus, R., Chaerul, M., … Jamaludin. (2020). Teknik Keselamatan dan Kesehatan Kerja. Medan: Yayasan Kita Menulis.