Isnawan MG, Alsulami NM, Hidayat R, Kuswara RD. Hybrid didactic design research for fraction understanding during pandemic-induced remote learning: Addressing ontogenic, didactical, and epistemological obstacles. Int. J. Didact.Math Distance Educ. [Internet]. 2026 Jan. 29 [cited 2026 Feb. 3];3(1):83-105. Available from: https://jurnal.ut.ac.id/index.php/ijdmde/article/view/12898