TOLEMARIAM BOKA; ASHEBIR BEZABIH; SISAY TADESSE; ANTENEH WASYHUN. Awareness and Perceptions towards Practices of Twenty-First Century Skills in Chemistry Education in the Secondary Schools. International Journal of Sciences: Basic and Applied Research (IJSBAR), Jordan, v. 73, n. 1, p. 548–578, 2024. Disponível em: https://gssrr.org/JournalOfBasicAndApplied/article/view/17097. Acesso em: 28 sep. 2025.