A.R. Fortuin, M.E.M. de Smet, P.A. Sumosusatro, L.J. van Marle, and S.R. Troelstra. 1988. “Late Cenozoic Geohistory of NW Buru, Indonesia and Plate Tectonic Implications”. Netherlands Journal of Geosciences, January, 91-105. https://njgjournal.nl/index.php/njg/article/view/12969.