Mateya M, Utete CN, Ilukena AM. 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. JSHSS [Internet]. 2016 Nov. 15 [cited 2024 Jul. 3];:158-6. Available from: https://journals.unam.edu.na/index.php/JSHSS/article/view/1044