Sitti Rahmawati, Asnidar, Hasriani, Erwa Nurwaji, and Nurawaliah Rasyid, “Overview of the Source of Covid-19 Infection in H. Andi Sulthan Daeng Radja Hospital Nurses in 2020”, Chc, vol. 6, no. 1, pp. 1 - 6, Apr. 2022.