EFEKTIVITAS MODEL PEMBELAJARAN TTW (THINK TALK WRITE) TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA SD NEGERI 2 PENENGAHAN BANDAR LAMPUNG. lentera [Internet]. 2021 Oct. 14 [cited 2026 Apr. 26];14(2):509-16. Available from: https://jurnal.stkippgribl.ac.id/index.php/lentera/article/view/1054