BACHOK, S.; PONRAHONO, Z. MODELLING WILLINGNESS TO PAY FOR IMPROVED PUBLIC TRANSPORT SERVICES: THE CHALLENGES OF NON-RESPONSE TO STATED PREFERENCE HYPOTHETICAL QUESTIONS. PLANNING MALAYSIA, [S. l.], v. 15, n. 1, 2017. Disponível em: https://journals.iium.edu.my/pmr/index.php/pmj/article/view/250. Acesso em: 14 may. 2026.