M.E.M. De Smet, P.A. Sumosusastro, I. Siregar, L.J. Van Marle, S.R. Troelstra, & A.R. Fortuin. (1989). Late Cenozoic geohistory of Seram, Indonesia. Netherlands Journal of Geosciences, 221-235. Retrieved from https://njgjournal.nl/index.php/njg/article/view/12898