MELYYANTI, Meli; NUR AZIS, Khafidh; NURHANAFI, Kholis. Sedimentary layers identification of Bribin underground river in Gunungkidul utilizing the theory of HVSR microtremor. Jurnal Penelitian Saintek, Yogyakarta, Indonesia, v. 30, n. 2, p. 97–103, 2025. DOI: 10.21831/jps.v30i2.89754. Disponível em: https://jurnal.uny.ac.id/index.php/saintek/article/view/89754. Acesso em: 23 dec. 2025.