Samson, M. K. ., and M. M. . Charles. “Challenges Facing Secondary School Principals in the Implementation of the National Curriculum Statement in Capricorn District of the Limpopo Province”. 2018. British Journal of Multidisciplinary and Advanced Studies, vol. 2, no. 1, Mar. 2018, pp. 60-70, https://bjmas.org/index.php/bjmas/article/view/33.