PENGARUH PENERAPAN MODEL PEMBELAJARAN CONNECTING, ORGANIZING, REFLECTING, EXTENDING (CORE) TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIKA SISWA KELAS VIII. epsilon. 2022;1(2):23-34. Accessed November 12, 2025. https://jurnal.stkippgribl.ac.id/index.php/epsilon/article/view/236