N. Safitri, S. Raupu, D. R. Arifanti, M. Megasari, and S. Z. Thalhah, “Effectiveness of the Multi-Representation Discourse Learning Model on Mathematical Problem-Solving Ability and Self-Confidence”, JRHotsPM, vol. 5, no. 3, pp. 1171–1184, Aug. 2025.