O.H., Goedhart. Tiga Landschap Di Sulawesi: Banggai, Bungku dan Mori (1908). LOBO: Annals of Sulawesi Research, [S. l.], v. 9, n. S1, 2025. Disponível em: https://lobo.journals.yorku.ca/index.php/default/article/view/194. Acesso em: 6 jun. 2025.