Innorate the grading scale of the multiple choice questiones exam in the National High school graduation examination. Tạp chí Nghiên cứu Khoa học Công đoàn, [S. l.], n. 13, p. 28, 2020. Disponível em: https://vjol.vista.gov.vn/DHCD/article/view/44909. Acesso em: 5 july. 2026.