“ANALYSIS OF PRE- AND POST-ANNOUNCEMENT DIFFERENCES IN MERGERS AND ACQUISITIONS ON ABNORMAL RETURNS AND TRADING VOLUME ACTIVITY (A Study of Companies Listed on the Indonesia Stock Exchange, 2020-2024)” (2026) Proceeding of International Conference on Economics, Technology, Management, Accounting, Education, and Social Science (ICETEA), 2, pp. 1039–1051. Available at: https://conference.unita.ac.id/index.php/icetea/article/view/847 (Accessed: 11 October 2026).