Andrayani, A., Haida Fitri, Rusdi, and M. Imamuddin. “The Effect of the Collaborative Learning Model on the Mathematical Problem-Solving Ability of Grade VIII Students at SMPN 1 Sasak Ranah Pesisir in the 2023/2024 Academic Year”. TOFEDU: The Future of Education Journal, vol. 4, no. 4, Apr. 2025, pp. 979-86, doi:10.61445/tofedu.v4i4.510.