“EVALUASI TARIF ANGKUTAN UMUM BERDASARKAN ABILITY TO PAY (ATP) DAN WILLINGNESS TO PAY (WTP) DI KOTA PANGKALPINANG”. FROPIL (Forum Profesional Teknik Sipil) 4, no. 2 (December 12, 2016): 156–164. Accessed April 25, 2026. https://journal.ubb.ac.id/index.php/fropil/article/view/1245.