Hasyim, Abdurrachman Yusuf, Muhammad Karami, and Siti Anugrah Mulya Putri Ofrial. “The Effect of Side Friction on Road Capacity (case Study: Teuku Umar Road and Imam Bonjol Road)”. Jurnal Rekayasa Sipil dan Desain 9, no. 1 (November 12, 2021): Hal. 65 – 76. Accessed October 28, 2025. http://journal.eng.unila.ac.id/index.php/jrsdd/article/view/1661.