NGUYEN XUAN TRUNG. Are level A1 motorcycle driving theory tests easy or difficult?. The University of Danang - Journal of Science and Technology, [S. l.], v. 8, n. 117, p. 23–25, 2017. Disponível em: https://jst-ud.vn/jst-ud/article/view/3416. Acesso em: 18 may. 2024.