Lius, Deni, and Sahidi Sahidi. “PENGEMBANGAN SOAL-SOAL OPEN ENDED BERBASIS KEARIFAN LOKAL PADA MATA PELAJARAN MATEMATIKA”. THEOREMA: The Journal Education of Mathematics, vol. 1, no. 2, Dec. 2020, https://e-journal.unimudasorong.ac.id/index.php/jurnaltheorema/article/view/1098.