RIDVAN KETE; YASEMIN HORASAN; BAHADIR NAMDAR. Investigation of the Conceptual Understanding Difficulties in 9th Grade Biology Books About Cell Unit . Elementary Education Online, [S. l.], v. 11, n. 1, p. 95–106, 2023. Disponível em: https://ilkogretim-online.org/index.php/pub/article/view/3683. Acesso em: 3 jul. 2024.