SAMUEL, . A. B. Examining the Challenges in the Implementation of Upper Basic Curriculum in Nigeria. Kashere Journal of Education , [S. l.], v. 2, n. 1, p. 220–227, 2021. Disponível em: https://journals.fukashere.edu.ng/index.php/kje/article/view/629. Acesso em: 14 mar. 2026.