NNEKA , Nnorom R.; UCHEGBU , Juliana C. Effect of Mastery Learning Approach on Senior Secondary School Students Achievement in Biology in Imo . African Journal of Education,Science and Technology (AJEST), [S. l.], v. 3, n. 3, p. pp 100–105, 2017. Disponível em: http://ajest.org/index.php/ajest/article/view/571. Acesso em: 3 apr. 2026.