Traffic Assessment for Unsignalized Intersection Under Influence for Side Friction on Padang Lawas, North Sumatera. J. Innov. Technol. [Internet]. 2020 Oct. 30 [cited 2025 Jul. 8];1(2):48-54. Available from: https://ojs.umrah.ac.id/index.php/jit/article/view/3165