Handoko, Catur Rakhmad, et al. “MESIN PEREKAM KECEPATAN KENDARAAN DI JALAN TOL BERBASIS RASPBERRY PI 3”. Jurnal 7 Samudra, vol. 3, no. 1, June 2018, pp. 44-52, doi:10.54992/7samudra.v3i1.27.