KAMUKONDA, L. H.; NAUKUSHU, S. T. Grade 12 learners’ performance on direct algebraic equations vis-à-vis word problem equations: A case study of one school in Oshana Region, Namibia. Namibia Educational Reform Forum Journal, [S. l.], v. 27, n. 1, p. 39–49, 2019. Disponível em: https://journals.nied.edu.na/index.php/nerfj/article/view/120. Acesso em: 3 jul. 2024.