KHASAWNEH, Ohoud. Does Sovereign Rating Announcement have symmetrical Effect on Stock Market Returns?Case Study: Amman Stock Exchange (ASE). Al-Balqa Journal for Research and Studies, [S. l.], v. 18, n. 1, p. 51–91, 2015. DOI: 10.35875/1105-018-001-006. Disponível em: https://ajrs.ammanu.edu.jo/ojs/index.php/albalqajournal/article/view/250.. Acesso em: 10 oct. 2026.