Sukemi, S. A. ., and R. Sinabutar. “THE EFFECT OF SOLVENCY AND LIQUIDITY TOWARDS PROFITABILITY ON MACHINE AND HEAVY EQUIPMENT COMPANIES THAT LISTED IN BEI 2015-2019.”. Jurnal Ekonomis, vol. 13, no. 4b, Dec. 2020, https://jurnal.unai.edu/index.php/jeko/article/view/2424.