Breitfeld, H. Tim. “Provenance of Pleistocene Sediments in West Sarawak and Evidence for Pliocene Acid Magmatism in Central Borneo”. Berita Sedimentologi 47, no. 1 (August 15, 2021): 5–32. Accessed November 15, 2026. https://journal.iagi.or.id/index.php/FOSI/article/view/51.