A A Comparative Study of ISAT Stock Price and Transaction Volume Based on Merger Announcement: A Comparative Study of ISAT Stock Price and Transaction Volume Based on Merger Announcement. Fraction: Jurnal Teori dan Terapan Matematika, [S. l.], v. 2, n. 2, p. 53–59, 2022. DOI: 10.33019/fraction.v2i2.32. Disponível em: https://fraction.ubb.ac.id/index.php/fraction/article/view/32. Acesso em: 17 apr. 2026.