Adri, M. T., A. W. Kurniawan, Anwar, A. Ramli, and Nurman. “The Impact of Covid-19 on The Profitability of Manufacturing Companies Listed on The Indonesia Stock Exchange (IDX)”. Economics and Business Journal (ECBIS), vol. 1, no. 5, July 2023, pp. 561-8, doi:10.47353/ecbis.v1i5.68.