Susanti U, Wutsqa DU. Keefektifan pendekatan contextual teaching learning dan problem solving ditinjau dari prestasi dan kepercayaan diri siswa. J. ris. pendidik. mat [Internet]. 2020 May 12 [cited 2025 May 12];7(1):97-107. Available from: https://journal.uny.ac.id/index.php/jrpm/article/view/8537