Kruyt, Albert C., Nicholaus Adriani, and Albert Schrauwers. 2022. “DARI POSO KE MORI: 22 Agustus-29 September 1899”. LOBO: Annals of Sulawesi Research 3 (S2):1-41. https://lobo.journals.yorku.ca/index.php/default/article/view/18.