Boussanlègue, T., H. Biriziwè, M. Esso-Mondjonna, dan A. Essè. “Performances of Elementary Pupils in French and Mathematics and Socio-Professional Category and the Formal Education Level of Parents in Togo”. International Journal of Educational Review, vol. 3, no. 1, Juli 2020, hlm. 53-62, doi:10.33369/ijer.v3i1.11843.