Pamungkas, Megita Dwi, and Heny Nugroho. “IMPLEMENTATION OF SPACE GEOMETRY LEARNING USING GEOGEBRA TO IMPROVE PROBLEM SOLVING SKILLS”. MaPan : Jurnal Matematika Dan Pembelajaran, vol. 8, no. 2, Dec. 2020, pp. 224-35, doi:10.24252/mapan.2020v8n2a4.