RATRI, Diyaning; ANNURHUTAMI, Fitra. Learning Biostratigraphy in University of Gadjah Mada. Berita Sedimentologi, [S. l.], v. 31, n. 1, p. 82, 2021. DOI: 10.51835/bsed.2014.31.1.126. Disponível em: https://journal.iagi.or.id/index.php/FOSI/article/view/126. Acesso em: 30 oct. 2026.