Jitu Halomoan Lumbantoruan. Didactical Design Research (DDR) With Translation Module Development in Elementary Schools and Junior High Schools. IJMSE [Internet]. 2026 Feb. 12 [cited 2026 Jun. 24];3(1):20-3. Available from: https://international.arimsi.or.id/index.php/IJMSE/article/view/285