PANGGABEAN, M. P. Is There Bull and Bear Markets in the Indonesia Stock Exchange?. Jurnal Akuntansi dan Keuangan, [S. l.], v. 12, n. 1, p. pp. 1-8, 2010. DOI: 10.9744/jak.12.1.pp. 1-8. Disponível em: https://jurnalakuntansi.petra.ac.id/index.php/aku/article/view/18028. Acesso em: 2 may. 2024.