Sobirin, Achmad, MZ. Fahruddin, and Andiana Rosid. “Identifying Ultimate Controlling Shareholders In Indonesian Public Companies: An Empirical Survey”. PERWIRA - Jurnal Pendidikan Kewirausahaan Indonesia 2, no. 2 (December 12, 2019): 145-154. Accessed December 28, 2025. https://perwiraindonesia.com/eJournal/index.php/perwira/article/view/25.