AGUSTINA, Lucky; SIMORANGKIR, Samuel Richard Natanael. Learning Biostratigraphy in University of Diponegoro, Semarang. Berita Sedimentologi, [S. l.], v. 31, n. 1, p. 84–85, 2021. DOI: 10.51835/bsed.2014.31.1.128. Disponível em: https://journal.iagi.or.id/index.php/FOSI/article/view/128. Acesso em: 31 oct. 2026.