Samosir H, Lubis NF, Nasution NF. EFEKTIVITAS MODEL PEMBELAJARAN CONTEXTUAL TEACHING AND LEARNING (CTL) TERHADAP HASIL BELAJAR SISWA PADA MATERI LARUTAN PENYANGGA SMA NEGERI 1 SIPIROK. JOICE [Internet]. 2025 Dec. 29 [cited 2026 Mar. 23];1(2):6-13. Available from: https://jurnal-kimia.iptapsel.ac.id/index.php/joice/article/view/4