MENINGKATKAN MOTIVASI BELAJAR MATEMATIKA SISWA MELALUI PENERAPAN CONTEXTUAL TEACHING AND LEARNING (CTL) PADA SISWA KELAS IV SDN 20 BATTANG. j.sains, j.saintifik, j.multidisiplin [Internet]. 2022 Sept. 7 [cited 2026 Oct. 20];20(3):165-72. Available from: https://www.jurnal.faperta-unras.ac.id/index.php/JS/article/view/73