Hardman, Joanne, and Mashudu Raudzingana. “Mathletics Software and Student Attainment in Grade 4- a Cultural Historical Analysis”. Advances in Social Sciences Research Journal 8, no. 5 (June 5, 2021): 517–531. Accessed December 7, 2025. https://www.journals.scholarpublishing.org/index.php/ASSRJ/article/view/10273.