Khaq, A., D. Syahrial, and W. H. Susilo. “An Increased on Firm Value: Insight in State Owned Enterprises That Listed on the Indonesia Stock Exchange 2013-2018”. International Journal of Economics and Financial Issues, vol. 10, no. 2, Mar. 2020, pp. 143-7, https://www.econjournals.com/index.php/ijefi/article/view/9219.