NDUNGURU, Wilgis; NYANDARA, Zamzam I.; LUKINDO, Jesse. Evaluating the impact of competency-based teaching on students’ English communication skills in rural public secondary schools in Mbinga District, Tanzania. African Journal of Empirical Research, Nairobi, Kenya, v. 7, n. 2, p. 809–820, 2026. DOI: 10.51867/ajernet.7.2.72. Disponível em: https://ajernet.net/ojs/index.php/ajernet/article/view/1889. Acesso em: 25 aug. 2026.