SYAHRIAL, S.; ARSYAD, L. KONSENTRASI DAERAH PERHOTELAN DI KAWASAN DANAU TOBA. Convergence: The Journal of Economic Development, [S. l.], v. 2, n. 1, p. 36–53, 2020. DOI: 10.33369/convergence-jep.v2i1.11508. Disponível em: https://ejournal.unib.ac.id/convergence-jep/article/view/11508. Acesso em: 4 may. 2024.