NUR AZIZAH, SITI; SUDIBYO, ELOK. PENSA E-JURNAL: PENDIDIKAN SAINS, [S. l.], v. 7, n. 2, 2019. DOI: 10.26740/pensa.v7i2.27726. Disponível em: https://ejournal.unesa.ac.id/index.php/pensa/article/view/27726. Acesso em: 16 dec. 2025.