Penerapan Model Pembelajaran Kooperatif dengan Pendekatan Struktural Bersama Kepala Bernomor untuk Meningkatkan Pencapaian Kompetensi Matematika Siswa Kelas VIII/C SMP: Application of Cooperative Learning Model with Numbered Heads Together Structural Approach to Improve Achievement of Mathematicals Competence of Students in Class VIII/C SMP. st [Internet]. 2019 Jun. 30 [cited 2026 May 1];2(2). Available from: https://talentaconfseries.usu.ac.id/index.php/st/article/view/547