TAMPUBOLON, R. B. .; NISJA PUTRA ZAI, S.; AGUSTIN, H. . The impact of bid-ask spread and trading volume activity on abnormal returns during the Period before and after the announcement of fuel price increase in Indonesia in 2022. International Journal of Applied Finance and Business Studies, [S. l.], v. 11, n. 2, p. 139–153, 2023. DOI: 10.35335/ijafibs.v11i2.90. Disponível em: https://ijafibs.pelnus.ac.id/index.php/ijafibs/article/view/90. Acesso em: 21 apr. 2026.