HUONG TRA, Nguyen Thi; BACH, Tran Xuan; NAM, Tran Van. Hoshin Kanri and the Multi-Tier Catchball Mechanism in Internal Quality Assurance of Vietnamese Higher Education. RA Journal of Applied Research, [S. l.], v. 12, n. 3, p. 210–218, 2026. DOI: 10.47191/rajar/v12i3.05. Disponível em: https://rajournals.in/index.php/rajar/article/view/1994. Acesso em: 25 oct. 2026.