Arakian, Mucholis Arief, et al. “Evaluasi Kinerja Pelayanan Pengujian Kendaraan Bermotor Jenis Angkutan Barang Di Dinas Perhubungan Kota Sorong”. Jurnal GRADUAL : Governance Administration and Public Service, vol. 7, no. 1, Nov. 2019, pp. 40-51, https://ejournal.um-sorong.ac.id/index.php/gl/article/view/680.