MAULINA, Dewi; SHAFIRA, Maytika Dewi Ayu; SANTOSO, Guritnaningsih P. Effect of Signs Types on Level of Traffic Signs Understanding of Motorcyclists. Psympathic : Jurnal Ilmiah Psikologi, [S. l.], v. 10, n. 1, p. 19–28, 2023. DOI: 10.15575/psy.v10i1.12226. Disponível em: https://journal.uinsgd.ac.id/index.php/psy/article/view/12226. Acesso em: 23 jul. 2026.