JITU HALOMOAN LUMBANTORUAN. Didactical Design Research (DDR) With Translation Module Development in Elementary Schools and Junior High Schools. International Journal of Mathematics and Science Education, [S. l.], v. 3, n. 1, p. 20–30, 2026. DOI: 10.62951/ijmse.v3i1.285. Disponível em: https://international.arimsi.or.id/index.php/IJMSE/article/view/285. Acesso em: 24 jun. 2026.