AYAT MOHAMMAD AL-MUGHRABI. Inclusion of 21st Century Skills in Biology Textbook for the ninth grade. Elementary Education Online, [S. l.], v. 20, n. 5, p. 1959–1969, 2023. Disponível em: https://ilkogretim-online.org/index.php/pub/article/view/5400. Acesso em: 5 jan. 2025.