SMITH, B.; BUHRMANN, J.; CHIMEDZA, C. MEASURING TREATMENT EFFECTS OF ONLINE VIDEOS ON ACADEMIC PERFORMANCE USING DIFFERENCE-IN-DIFFERENCES ESTIMATIONS. The South African Journal of Industrial Engineering, [S. l.], v. 32, n. 3, p. 111–121, 2021. DOI: 10.7166/32-3-2613. Disponível em: http://sajie.journals.ac.za/pub/article/view/2613. Acesso em: 2 may. 2024.