Ramadhani, P., Harisman, Y., Meutia Rani, M., Irwan, & Mujtaba Asad, M. . (2026). The Effect of Implementing the Problem-Based Learning Model on the Systematic Communication Skills of Grade XI Students at SMAN 2 Padang. Rangkiang Mathematics Journal, 5(2), 172–179. https://doi.org/10.24036/rmj.v5i2.175