MARGARETHA SONYA; MUHAMMAD FACHRI MAULANA; SONGRUI CARL. Employee Engagement: QCC’s Improve Productivity by Engaging Workers in Problem-Solving at CATL: A Case Study of CATL’s Headquarters and Indonesian Branch. Economics and Business Journal (ECBIS), [S. l.], v. 4, n. 4, p. 1373–1392, 2026. DOI: 10.47353/ecbis.v4i4.370. Disponível em: https://ecbis.net/index.php/go/article/view/370. Acesso em: 9 jun. 2026.