PENINGKATAN KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA MELALUI MODEL CONTEXTUAL TEACHING AND LEARNING (CTL) PADA MATERI FUNGSI KUADRAT KELAS X. Sindoro [Internet]. 2025 Dec. 3 [cited 2026 Oct. 27];18(2):251-60. Available from: https://ejournal.cibinstitut.com/index.php/sindoro/article/view/2667