LAM, Phi Van; LAN, Tran Thi; MIEN, Trinh Luong. Design and Implementation of an IoT-Enabled Automatic Token Counting Machine for Metro Systems. Engineering, Technology & Applied Science Research, Greece, v. 16, n. 2, p. 34337–34350, 2026. DOI: 10.48084/etasr.17737. Disponível em: https://etasr.com/index.php/ETASR/article/view/17737. Acesso em: 24 jun. 2026.