Physical form sustainability of Huta Siallagan Samosir architecture in supporting Toba Caldera Geopark cultural tourism. ARTEKS : Jurnal Teknik Arsitektur, [S. l.], v. 5, n. 3, p. 459–468, 2020. DOI: 10.30822/arteks.v5i3.599. Disponível em: https://www.journal.unwira.ac.id/index.php/ARTEKS/article/view/599. Acesso em: 30 jun. 2026.