GRAVITIANI, E. APLIKASI INDIVIDUAL TRAVEL COST METHOD DI AREA PUBLIK. Jurnal Ekonomi & Studi Pembangunan, [S. l.], v. 11, n. 1, p. 30–37, 2010. Disponível em: https://journal.umy.ac.id/index.php/esp/article/view/1773. Acesso em: 29 apr. 2025.