Sari PMN, Parmiti DP, Sukmana AIWIY. Hasil Belajar Matematika melalui Model CTL Berbasis Masalah Terbuka di SD. j. ilm. sekol. dasar [Internet]. 2020 Jul. 23 [cited 2024 May 6];4(2):248-56. Available from: https://ejournal.undiksha.ac.id/index.php/JISD/article/view/25558