Atmaja, Lukas Setia. “Ownership Concentration and Firm Value : A Panel Data Analysis on The Impact of Ownership Concentration on Firm Value”. International Research Journal of Business Studies 2, no. 2 (August 1, 2009): 99–110. Accessed December 4, 2025. https://irjbs.prasetiyamulya.ac.id/index.php/jurnalirjbs/article/view/845.