HELMI, M. Sistem Instrumentasi Radar Pengukur Kecepatan Kendaraan Bermotor. Jurnal Jalan Jembatan, [S. l.], n. 2, p. 22–25, 2019. Disponível em: https://binamarga.pu.go.id/jurnal/index.php/jurnaljalanjembatan/article/view/510. Acesso em: 12 oct. 2025.