PRATAMA DANCE, D. P. Analysis of the Development of Tourist Flow to Lake Toba on the Economic Development of North Sumatra. ProBisnis : Jurnal Manajemen, [S. l.], v. 11, n. 1, p. 24–31, 2020. DOI: 10.62398/probis.v11i1.10. Disponível em: http://ejournal.joninstitute.org/index.php/ProBisnis/article/view/10. Acesso em: 28 sep. 2024.