PUTRANTO, D. .; TRI ASTUTI, M. . Strengthening the Branding of Lake Toba. KnE Social Sciences, [S. l.], v. 7, n. 13, p. 122–130, 2022. DOI: 10.18502/kss.v7i13.11652. Disponível em: https://knepublishing.com/index.php/KnE-Social/article/view/11652. Acesso em: 19 may. 2025.