@article{repository39159,
           title = {Discovery Learning In Geometry Class: The Implementation of Learning to Built Pre-Service Theachers' Conceptual Understanding of Geometry Based On Sociomathematical Norms},
         journal = {IndoMath: Indonesia Mathematics Education},
             url = {https://indomath.org/index.php/indomath/article/view/87/pdf},
          author = {Samsul Maarif, SMF and Soebagyo, Joko}
}