MATEYA, M.; UTETE, C. N.; ILUKENA, A. M. Factors that cause poor performance in mathematics at National School Secondary Certificate level compared to Junior Secondary Certificate level in four selected schools in the two Kavango educational regions. Journal for Studies in Humanities and Social Sciences, [S. l.], p. 158–168, 2016. Disponível em: https://journals.unam.edu.na/index.php/JSHSS/article/view/1044. Acesso em: 22 nov. 2024.