Novirani, Dwi, and Hari Adianto. “Relation of Service Quality, Load Factors and Tariff on Bus City of Bandung”. International Review of Management and Marketing 10, no. 4 (July 18, 2020): 152–160. Accessed April 29, 2024. https://www.econjournals.com/index.php/irmm/article/view/9867.