Ramadhan, A.P. and Sumardjo, M. 2021. Previous Years Audit Opinions, Profitability, Audit Tenure and Quality Control System on Going Concern Audit Opinion. European Journal of Business and Management Research. 6, 2 (Apr. 2021), 140–145. DOI:https://doi.org/10.24018/ejbmr.2021.6.2.817.