LÊ CHÍNH; NGUYỄN KHẮC HIẾU; HOÀNG ĐỨC SINH. Case Study Applying Six Sigma to Reduce Defects of DC Recessed LED Downlight: Online First: 03/07/2026. Journal of Technical Education Science, [S. l.], 2026. DOI: 10.54644/jte.2026.2105. Disponível em: https://www.jte.edu.vn/index.php/jte/article/view/2105. Acesso em: 7 jul. 2026.