Belhouchet, Chafai, and Lamri Ouadah. “The Contribution of Psychological Approach to Addressing Environmental and Sustainable Development Problems”. Al-Jamie Journal In Psychological Studies and Educational Sciences, vol. 6, no. 1, Apr. 2021, pp. 817-42, https://journals.univ-msila.dz/index.php/ajpe/article/view/9481.