AL-RAMAHI, Nidal. The Level of Application of Cost System Based on Activities in Jordanian Airlines. Al-Balqa Journal for Research and Studies, [S. l.], v. 21, n. 1, p. 37–51, 2018. DOI: 10.35875/1105-021-001-003. Disponível em: https://ajrs.ammanu.edu.jo/ojs/index.php/albalqajournal/article/view/197.. Acesso em: 10 oct. 2026.