Kariyana, I. “ANALISIS DAMPAK KENAIKAN BBM TERHADAP TARIF ANGKUTAN UMUM”. Jurnal Teknik Gradien 9, no. 2 (September 29, 2017): 145-161. Accessed July 7, 2022. https://ojs.unr.ac.id/index.php/teknikgradien/article/view/75.