Limbong, C., Simanjorang, E., Harahap, N. and Nasution, Z. 2021. Financial Ratio Analysis at PT. Adaro Energy Tbk. Based on The 2017 – 2020 Financial Statements. Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE). 4, 1 (Aug. 2021), 77-86. DOI:https://doi.org/10.31538/iijse.v4i1.1460.