Agna Ilma Taofik, Dadang Juandi, Dadan Dasari, and Nanang Priatna. “The Use Of Graspable Math Applications On Students’ Mathematical Understanding Competence In The Topic Of Two-Variable Linear Equation System”. INTERNATIONAL CONFERENCE OF HUMANITIES AND SOCIAL SCIENCE (ICHSS), Jan. 2023, pp. 410-25, https://programdoktorpbiuns.org/index.php/proceedings/article/view/175.