Nagaoka, Takuya, Peter J. Sheppard, Callan Ross-Sheppard, and Nina Kononenko. “Obsidian Point Discovered on Kapingamarangi Atoll, Micronesia: Implications for Post-Settlement Regional Interactions”. Waka Kuaka 131, no. 4 (March 16, 2023): 389–426. Accessed October 19, 2025. https://www.thepolynesiansociety.org/index.php/JPS/article/view/606.