Kuswara, R. D., Almazroei, E. E. and Isnawan, M. G. (2024) “Online didactical design for subtraction fractions: A didactical design research through lesson study activities”, International Journal of Didactic Mathematics in Distance Education, 1(1), pp. 37–46. Available at: http://jurnal.ut.ac.id/index.php/ijdmde/article/view/7772 (Accessed: 20 May 2024).