Faradillah A, Rizkia PA. Mathematical Understanding Concepts Ability in QR Code-Assisted Problem Solving by Gender. j. pend. mat. [Internet]. 2024 Aug. 4 [cited 2024 Oct. 5];18(3):313-28. Available from: https://jpm.ejournal.unsri.ac.id/index.php/jpm/article/view/111