L. EL KOLLI, « HOW FAR HAS “ TIME -SPENT– ON-THE-TASK” BY PUPILS AND TEACHERS PROVED TO BE CRUCIAL VARIABLE IN CLASSROOM RESEARCH? », م.ع.ا, vol. 19, nᵒ 3, p. 113–122, déc. 2008, Consulté le: 22 octobre 2025. [En ligne]. Disponible à: http://conferences.umc.edu.dz/h/article/view/799