GINTING, N.; RAHMAN, N. V. .; DELIANUR NASUTION, A. . A Comparative Study of Landmark on Heritage Tourism in Sumatra. Environment-Behaviour Proceedings Journal, [S. l.], v. 5, n. 15, p. 221–227, 2020. DOI: 10.21834/ebpj.v5i15.2491. Disponível em: https://ebpj.e-iph.co.uk/index.php/EBProceedings/article/view/2491. Acesso em: 3 jul. 2024.