Daya Tarik Bukit Holbung dan Kontribusinya Bagi Pariwisata Danau Toba. Jurnal Penelitian Ilmiah Multidisipliner , [S. l.], v. 2, n. 04, p. 1915–1919, 2025. Disponível em: https://ojs.ruangpublikasi.com/index.php/jpim/article/view/1528.. Acesso em: 20 mar. 2026.