Khairan, I., and F. Ashar. “ANALISIS KEMACETAN LALU LINTAS (STUDI KASUS : SIMPANG TUNGGUL HITAM DI KOTA PADANG)”. Jurnal Applied Science in Civil Engineering, Vol. 4, no. 4, Nov. 2023, pp. 538-44, doi:10.24036/asce.v4i4.93483.