Wijaya, D. ., Lasmaria, R. . and Edra, A. . (2022) “Bacterial Sputum Culture Results with Moderate and Severity Covid-19 Patients in Pinere Room Arifin Achmad Hospital, Riau Province”, Nusantara Science and Technology Proceedings. Malang, Indonesia, pp. 82-85. doi: 10.11594/nstp.2022.2816.