Pamungkas, M. D.; Waluya, S. B.; Mariani, S.; Isnarto, I.; Rahmawati, F. .; Noor Kholid , M.; Laksmiwati, P. A. Enhancing Complex Problem-Solving Skills through STEM-Based Spatial Geometry E-Modules. QAJ 2024, 4, 541-556.