NINGTHIAS, Dyah Puspitasari; HIDAYANTI, Ermia; ANWAR, Yunita Arian Sani; LISTANTIA, Nora; FIRMANSYAH, Dodiy; SUGONDO, Baiq Viona Olganita. Validation of Ethnochemistry-Integrated Two-Tier Items for Chemical Literacy among Pre-service Chemistry Teachers. Hydrogen: Jurnal Kependidikan Kimia, [S. l.], v. 14, n. 1, p. 33–42, 2026. DOI: 10.33394/hjkk.v14i1.19581. Disponível em: https://ojspanel.undikma.ac.id/index.php/hydrogen/article/view/19581. Acesso em: 27 feb. 2026.