Amanatallah, Lina Ramez, and Dalal Michel Moukarzel. “Elementary Mathematics Teachers’ and Coordinators’ Perceptions about Teaching Problem Solving in North Lebanon Private Schools: An Exploratory Mixed Study”. European Scientific Journal, ESJ 14, no. 31 (November 30, 2018): 130. Accessed November 25, 2024. https://eujournal.org/index.php/esj/article/view/11482.