LEKULE, Aristarick A.; SHIRIMA, Gennes H. Conceptions of Sustainability of Open Schools in Offering Quality Secondary Education in Tanzania. Papers in Education and Development, [S. l.], v. 41, n. 1, 2023. Disponível em: http://196.44.161.124/index.php/ped/article/view/5872. Acesso em: 7 apr. 2026.