Abik, Mounia, and Rachida Ajhoun. “Normalization and Personalization of Learning Situation: NPLS”. International Journal of Emerging Technologies in Learning (iJET) 4, no. 2 (May 29, 2009): pp. 4–10. Accessed March 29, 2024. https://online-journals.org/index.php/i-jet/article/view/818.