1.
Nursasongko A, Mariani S, Dwijanto D. The Ability of Problem-Solving for Eighth Grade Student on Cooperative Problem Solving Learning Assisted by GeoGebra 3D. UJMER [Internet]. 23Dec.2020 [cited 29Mar.2024];9(2):123-30. Available from: https://journal.unnes.ac.id/sju/ujmer/article/view/32815